Learning about and with numbers is exciting when it's meaningful and the children are all engaged in what we're doing. In our class we have a 'Warm Fuzzy' jar ... when the children work together to do something 'super-duper', they're awarded with 'warm fuzzies'. When the jar is full we will be having a special party.
On Wednesday the children were given some warm fuzzies after completing a piece of work and all remembering to put their name on their work (something we've been working really hard on doing), one of the children asked, "I wonder how many warm fuzzies there are in the jar?" and from there a fabulous maths lesson unfolded ...
We talked about different ways of counting. Jerome suggested we could "guess how many warm fuzzies are in the jar", so we did ...
There was a big range of guesses from 10-100. Scarlett suggested we could "count them by the different colours so we can work it out", so we did ...
The children all took one or two warm fuzzies and sorted them on a table into a big, long row into the different colours. Then we counted each colour.

There were 5 different colours and 5 different numbers to add together. This was very hard ... we have been learning about adding numbers to 10, but there was way more than 10 warm fuzzies. Nicholas suggested we could "add two numbers together and then those ones" to make it easier. We used our maths knowledge, using our fingers and counting to add up the first two numbers 8 + 12, then 11 + 1. Then we worked out 20 + 12 and added the 16 purple ones. With everyone helping and sharing ideas, and using materials (the warm fuzzies and some counters) and the 100's board, we counted 48 warm fuzzies in total. We went back to our line up on the table and counted 1:1 to check if we'd got it right and we had. We were all so pleased with ourselves and had done such a good job with our maths, that Mrs P put another handful of warm fuzzies in the jar to celebrate.
We are really looking forward to our 'Jar Full' party. We think it will come sooner than later since the jar is already over 1/2 full. We also think it will take about twice as many as we already have to fill it. We have all made a guess (an estimate) of how many warm fuzzies we think it will take to full the jar completely. The student who gets the closest answer will get a special prize.
This was a great session, with some wonderful rich discussion, maths vocabulary (estimate, guess, count, add, total, altogether, twice as many, half ...) and concepts all shared as a group. We'll count the warm fuzzies again when the jar is full.
After our warm-fuzzy counting, the children enjoyed sorting, counting and adding groups together using counters, beads, connector cubes and teddy bears. It was great to see them applying some of their new knowledge independently, in different ways.