Monday, 23 May 2016

The importance of formative assessment in mathematical problem solving

"When the cook tastes the soup, that's formative; when the guests taste the soup, that's summative."
-Robert Stake

From the presentation by Lynda Watters and Jill Sanderson, 2016

Our grade 1/2 teacher (Jill Sanderson) and our grade 4 teacher (Lynda Watters) were gracious enough to put together a power point presentation of their learning from the CAFLN (Canadian Assessment for Learning Network) conference they attended. In their presentation they mentioned that Formative Assessment doesn't have to involve a lot of paper work but rather just taking the time to observe and communicate (ask questions rather than giving answers), with students about their work.  

During the presentation, Jill (grade 1/2 teacher) passed out a copy of a math problem question that she decided to try with her class having seen it at the conference. She asked us to look at the child's representation and ponder what this child knew? What questions would we ask her? How could we support her learning further?

Sometimes we feel the need to steer children towards correct answers rather than taking the time to observe their work and answer questions with further questions to support learning and understanding. 

According to the Natural Curiosity resource, Assessment for Learning is outlined as the following:
  • the process of gathering and analyzing evidence for use by students and their teacher to determine where students are in their learning, where they need to go, and how best to get there.
  • helps teachers differentiate and focus how to approach the learning of individual students 
(Natural Curiosity: Building Children's Understanding of the World through Environmental Inquiry/A Resource for Teachers, page 30).

I decided to take this question and ask it to my kindergarten students. I was interested in learning if they understood the question, the different strategies they may choose to use to solve it, and how they would demonstrate their answers.

Take a look at the pictures below. What do you deduce from each of their representations? What do each of them tell you about their knowledge and understanding of the question? How can these representations aid in supporting student learning further? 


"Feedback can be the vital link between the teachers' assessment of a child and the action following that assessment, which then has a formative effect on the child's learning." -Hargreaves et al. (2000)
From the presentation by Lynda Watters and Jill Sanderson, 2016







The students enjoyed the challenge question. After sharing their work with their peers I decided to try a few more questions with them.


A cube representation of twenty bees each with four wings. 


D attempted to use cubes to depict twenty bees each with four wings. This was a good start but he asked Z if he would help him with his counting as he kept getting stuck. Notice the way they used the cubes to represent the details in the question. 


This time I shared a question that required paying attention to two characteristics, number of legs and number of trunks. I again asked the students how we could figure this out?




When I viewed E's representation, I was proud that he understood to draw ten elephants. He also added one trunk and four legs for each elephant. He became tired and did not finish solving the problem. But this drawing alone is full of information about his understanding of the question and his number sense. 


  
At first she made ten pieces of wire with beads on them. She told me she was done. I then asked her to explain to me what the different coloured beads represented? How many elephants do we need? She told me that the four beads represented the legs and the green bead represented the trunk for each elephant. In telling me this she started to count the elephants and realized she made too many.

With this question I decided not to discuss as a group as I wanted to see if any of the students took some of their learning strategies from the previous questions and related them to solving this question. 

There are 15 flowers in my vase. Each flower has 5 petals. How many petals altogether?



M chose to use cubes to represent the flowers and petals. M told me he placed these in rows of five though he still chose to count the flowers and petals by one's. 


In her drawing representation, M knew to draw fifteen flowers. She told me she had to scratch some out as she realized she made a mistake and drew too many. Her telling me this information was very important as it told me a lot about her counting ability and her ability to identify when things did not add up correctly. You can see that she knew to draw five petals per flower but again she told me she drew too many on some and she had to go back and scratch them out. Checking over one's work is an important skill to have and I noticed that M was able to do this independently. She became a bit tired so she did not finish figuring out the answer. But this is not always the most important aspect as there is so much that is gained from even attempting. 

A created a lovely representation using poker chips. He made fifteen flowers each with five petals. He used jewels for the centre of each flower which he did not count as a petal. I observed him counting the petals and noticed he was counting by one's. Though we have done some work on counting by 2's, 5's, and 10's. It seems this method of counting is the the most reassuring for him.


As a fun math challenge I showed the video below to the children. I received the link to this math problem from Lynda Watters (grade 4 teacher) who received it from Lynn Strangway (TDSB Principal) and Dianne Riehl (TDSB Vice Principal). She informed me the math problem was explored by a grade 1/2 class. I wanted to know what some of the kindergarten students thought after viewing it a few times and having access to the use of materials.



Thoughts after first viewing:


"He sorted by half and split them." K. C.

"He said one for him and one for his best friend to make it equal." L. B.

"All of his friends and him go the same amount." D. F.

"But not his sister, she only got five." B. P.

"He split in half for this friends." C. T.

Thought after second viewing:

"I noticed that how many he got looks just like ten." J. K.

"When he divided with his friends they got the same amount but not his baby sister or him." C. C.

"I noticed he shared." E. B.

"Every time he split he had some left and the leftovers he kept splitting so his friends get the same amount." Z. G.

"He did a pattern, one for you and one for me." C. D.

"He split with four people." F. D.

After viewing the video a few times, I asked the students if anyone wanted to use the lids to explore this math problem further? Below is C. C. and Z. G.'s experience.



They decided to re-enact the video. They labeled three bags with the names of a few friends in the class that like gumballs. Then they proceeded to dump out all the lids on the table and split them the way they saw Charlie do in the video. They thought everyone would get the same amount of gumballs but as they kept splitting Z. G. said that there wouldn't be enough for him to split with the other bag. 

"We used to have so much gumballs but now we have less because we're sharing them with all of our friends." C. C.

"Do they all have the same amount of gumballs?" Mrs. Ralph

"No because we had a lot but when we splitted them but then they became less and less amount because I had a lot at first and I split them with A. F. but then it got less and less to share with everyone." C. C.





I asked them if there was a way that they can make it fair?

"So we gave one to everyone and keep splitting them. I think everyone will have the same amount." Z. G.

"Charlie kept splitting the gumballs but every time he did his pile got smaller and smaller so not everyone go the same amount." C. C.




I kept the bags and thought why not place them at a table with the lids and see if it would entice anyone to go and explore in their own way.  L. S. and A. R. decided to give it a try. 




"We made Charlie's gumballs. We counted by ten. We figured how many Charlie had. We put one by one. Each bag has forty gumballs. Four gumballs for Charlie. Five gumballs for his little sister." L. S. and A. R.


The video below was from the morning exploration. The photos above are from the same day but during the afternoon. In the afternoon the girls found more lids and decided to split the "gumballs" again.

What math language knowledge are they using? What do the two students understand about this math problem? What would be a possible next step to extend their learning?






A timely question as it was pizza lunch day! We were curious as to how many pieces of pizza everyone ate. I asked the kids to remember how many slices they ate. We recorded the information and got a whole bunch of numbers! I then asked them, "What are some different strategies you could use to try and figure out how many pieces of pizza we ate altogether?".


C. C. and E. B. decided to use a ten frame to help them add up all the numbers. They check off each time they added chips onto the ten frame that coincided with the information on the chart paper.

Both C. C. and E. B. did their own counting using ten frames. What do you notice in the way they represented their data? 



F. D. said that she wanted to count by two's then count the one's and add the two numbers together. I offered her the number chart to support her in adding the two numbers she got together. 


C. D. and S. T. wanted to draw pizza slices to represent the data on the chart stand. After they drew all the pizza slices they counted the slices to get the total slices.


What information can you take away from the three different strategies used? What further supports can be offered to the students? How can their thinking and learning be extended? I find myself asking these questions often. They are a good guide for me to reflect on the thinking and learning of each student.


It's important that we place just as much value on making student thinking and learning visible rather than focusing on the final product so we can better differentiate the support and guidance needed by every child.     

"What if we started from a place where learning was viewed as an interaction in which two or more individuals work together in an intellectual way to solve a problem, clarify a concept, reflect, extend a narrative, etc. Both parties must contribute to the thinking and it must develop and extend, in other words, negotiated learning." 
(Sylvia, K., Melhuish, E.C., Sammons, P., Siraj-Blatchford, I. & Taggart, B. (eds), 2010)







Sunday, 24 April 2016

A honeybee inquiry: The importance of noticing a spark, giving time, slowing down and stepping back!



The Spark...


While reading this lovely book about spring one child's question initiated a deep discussion about bees. We didn't even have time to finish the book!




“Why is there so much fruit and less bees?” C. D.

“When I go to the grocery store I see so much fruit but outside I don’t see many bees and bees make the fruit?” C. D.

“I think it’s because they are getting hurt because the days are cold and only come in the spring and they don’t have fur.” C. D.

“Bees are in danger, my mom told me that farmers are putting pesticide on their plants and they bees are getting it on them and killing them.” L. B.
  
“What is pesticide?” Mrs. Ralph

“It’s a type of spray you put on plants and leaves.” M. S.

“It kills the bees because it has bad stuff that kills the bees.” J. B.

“They die from the spray because it has bad stuff for bees, people, and bugs.” D. F.

“The farmers doesn’t want the bees to get all the flowers because they will die.” P. C.

“They use pesticide because they don’t want bees around.” S. T.

“Bees are really important because they need to make honey and don’t want people to get sick. E. B.

“The pesticide makes bees not make honey so they won’t make it through the winter because honey makes them survive in the winter and it keeps them warm.” Z. G.

“They put the pesticide on flowers so the bees die and don’t sting them.” C. D.

“It is a bad idea because we won’t have honey.” P. C.

This was a very engaging conversation. A great start to some deep questions about bees. But now what? Where does one go from here in regards to extending this learning further? Below are a few suggestions that my teaching partner and I try and keep in mind as new sparks present themselves. 

Giving Time...

As with many inquiry topics, there is a vast amount of factual knowledge than can be found from many different sources, but I have found that the key to sustaining and extending an inquiry is to allow for enough time for the children to be able to formulate their own ideas. Critical thinking and being able to express their reasoning is in my opinion one of the most important aspects of inquiry based learning. As the children looked at pictures in books, viewed videos, and supported each other through discussions, they were able to formulate and express their own ideas.

"Imagination is theory making" ~ Jason Avery
(Twitter: @inquirelee)   

Ask yourself what the goal of the inquiry is? For us it is never solely about seeking correct answers. It is more about instilling a sense of wonder and curiosity that drives and motivates children to think critically and use the resources around them to guide their own learning. They are also able to support each other by taking part in group discussions and using new knowledge to either add  to or refute their own theories. I can't imagine how much rich knowledge of the children's thinking I would have missed if I didn't give them the time to ponder things on their own.

Answering back with open ended questions opens the door for further investigation. 

"What do you think?"
"How do you think they do that?"
"Where do you think they go?"
"Why does that happen?"

Open ended questions allows the learning to continue rather than stalling it. With so many wonderful books and other resources it was very tempting to give answers but I learned from experience that there is a balance in supporting children just enough so they continue to want to learn more. 

Slowing Down and Stepping Back...

I feel an inquiry should follow the children's interests at the deeper level based around their observations, wonders, and theories. With the educators' guidance, children's thinking and learning can be made visible. For this process to be achieved, one must slow down and give time for children to explore and investigate the many resources provided to them. I really had to hold myself back in wanting to read and show them everything on honeybees. In slowing down and stepping back the children became more confident and independent in seeking out knowledge on their own or having discussions in small groups with their peers about their thinking. Rather than coming to myself or Mrs. Powell, the children used the resources in the classroom to guide their own theories and formulate new ideas.  

Documenting the children's thinking has been beneficial in giving us a view into their level of understanding. Knowing where they are coming from in terms of their theories has greatly allowed us to be able to plan the type of supports and challenges needed to further their learning.   


How our honeybee inquiry unfolded...


After the initial discussion, we encouraged the children to write or draw their ideas on stickies and place them on the "I see, I wonder, I think" chart paper was placed on the wall at the Discovery Area. Once a week we read over the sticky note comments and discuss further. 



Below are some of the prominent discussions the children had relating to some of their wonder questions and theories. These documented conversations supported our planning and gave us direction into the type of learning the children were fascinated with.

Conversations about pollen, nectar, and honey…

“How do bees turn pollen into honey?” L. B.

“Bees get their honey from the hives.” B. P.

“I wonder how a beehive is made?” J. K.

“Bees pick up nectar by the things on their head.” D. F.

“They get the pollen on their body by going in the flower and rolling in it.” P. M.

“Why do flowers have pollen?” F. D.

“When I was looking I saw yellow dust. It’s pollen but I didn’t see nectar.” Z. G. when inspecting our classroom tulip plant.

“Nectar is like pollen it is on the inside of the flower. It was on my finger!” L. B.

“They carry pollen in their pollen basket.” Z. G.

“Bees make honey and they give it to the factory. They make it sweet. The factory people hold out a jar and the bees drop it in.” B. P.

“I think they drop the pollen into the honeycomb and it makes honey.” L. B.

“I think nectar is what bees drink, it is a liquid.” F. D.

“I think the bees eat pollen.” P. M.

“I think bees give nectar to the babies and the pollen is to make honey.” C. D.

“If they drink the nectar and give pollen to the babies what do they make honey with?” F. D.

“They make honey with the nectar and drink it too. Honey is made with pollen and nectar.” B. P.

“I know how bees get pollen, they lay down and get it on their stinger.” A. R.

“The bees get her finger to get pollen and brings it back to the house.” F. W.


“They were sucking pollen from my flowers in my garden.” S. T.

















How do bees know who is the queen bee? F. D.

“Two bees fight to see who get to be the queen bee. She takes care of the babies while the others go get pollen.” L. B.

“If you win the fight do you get to be a queen bee?” P. M.

“Yes and the other goes to find another hive to be queen.” L. B.

“I think they know because they watch the fight and whoever wins is the queen bee.” J. K.

“They know because they switch crowns with the old queen bee.” C. T. and M. S.

“I agree with J. K. that they watch the fight to see who wins.” P. M.

“I think the queen bee dances and tells them about what to do that’s how they know.” C. D.

“When they see the fight they see the difference of how they look and remember when they are in the hive.” L. B.


“The queen bee looks like a big larva with a red face and stinger. How they decide is when a queen bee lays an egg that is a bigger egg so they know the queen bee is inside.” Z. G.








What happens to bees in the winter?
A wonder inspired by our poem

“Bees die in the winter but before they die they lay eggs in the winter and hatch in the spring.” C. C.

“I disagree with C. C. because the larva need to be taken care of, they get hungry and hungrier each day they stay in their hives in the winter. They don’t die. Z. G.

“I thing C. C. means it’s a life cycle, before they die they lay eggs and then they hatch in spring and are busy in the fall making honey.” C. D.


“I agree with Z. G. because bees hibernate in the winter.” D. F.

How do bees help give us food?
Mrs. Ralph

“Fruits start as flowers and the bees help them grow and help flowers open up. The flower grows into a plum and it loses all their petals!” R. S.

“When they put honey on the fruit we taste the sweet part.” F. D.

“Flowers are flowers and then it goes into apples.” J. B.

“Bees bring pollen to flower and another flower to help them grow and then they bring it to the hive and the other bees turn in into nectar.” Z. G.

“They put pollen from another flower on it that’s how they make fruit.” M. O.
“They bring the honey from the hive to the fruit and put the honey on them to make them ripe.” C. D.

“They put pollen from different flowers on them and it turns the flower into fruit and vegetables. Then they put honey on fruit and vegetables to make it ripe for us to eat!” L. B.

“Bees see different shapes and smell different smells, that’s how they know if they have the right pollen to mix with other flowers.” Z. G.









Expert Information!

We were fortunate enough to have the Scientist in the School program come and deliver a fun fact filled afternoon all about bees! At the end the children were fascinated by the wax honeycomb they were able to observe.



We were also very lucky that one of our children had a family friend that was a honeybee keeper. This was another great opportunity that the children had to pose some of their wonder questions. Thank you to Gill who was gracious enough to answer our questions as well as send back some honey, bee pollen, and a dead honeybee for us to view under the microscope!








Conservation and Stewardship!

A conversation from the book:
What would we do if there were no bees?

“We need bees because we need food and bees help…” M. S.

“By pollinating!” C. C.

“The bees take pollen to flowers more than one, like two or three.” A. F.

“We would be dying because there would be no fruit, vegetables, and honey!” L. B.

“We would not have food.” B. P.

“There would be no seeds to make new plants.” C. C.

“We could tell the farmers not to spray pesticide on the bees?” C. T.

“Well how will we get to all the farmers and tell them not to use pesticide?” D. F.

“Well my neighbor goes to his farm and I could tell Charlie to tell the farmers not to use pesticide.” C. D.

“If the farmers don’t spray pesticide then the bugs will eat the plants.” B. P.

“What about the farmers spray half their crops with pesticide?” K. C.

“But how will the leaves get bigger on the plants if they don’t spray pesticide?” J. K.

“My neighbour Charlie doesn’t believe that bees need help.” C. D.

“Bring him a book about bees.” F. D.

“Bring him to a farm and see dead bees.” L. B.

“Show Charlie the cereal box.” G. S.

“Show him videos we have.” F. D.

“Show him the commercial we saw.” D. F.












How can we let our school and community know about saving the bees?

“I made posters and put them at the bus stop with L. B.” C. D.

“I can put posters up around my neighbourhood and community.” C. C.

“I can tell my mom to tell people at her work so they can help bees by planting wildflowers.” L. B.

“Send other classes videos about saving the bees.” M. S.

“Talking to the classes about bees and giving them books.” F. D.

“Put posters all over the school.” B. P.

“Maybe we can go to other classes and tell them bees are in danger and how to help them?” M. S.



This is just a snippet of the documentation. More can be found on our board display just outside our classroom!





"Don't look for a product, look for the thinking." ~ Jason Avery
(Twitter: @Ms. SAndrews)