math teacher Archives ⋆ R.E.A.L.-World Learners https://realworldlearners.com/tag/math-teacher/ Engaging, authentic learning resources for students of all ages Thu, 14 Mar 2019 00:25:05 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://realworldlearners.com/wp-content/uploads/2017/09/cropped-8516c9f3047b5127c72aba019d664e56-32x32.jpeg math teacher Archives ⋆ R.E.A.L.-World Learners https://realworldlearners.com/tag/math-teacher/ 32 32 Math Monday: Ten frame math with seashells https://realworldlearners.com/math-monday-10-frame-math-with-seashells/ https://realworldlearners.com/math-monday-10-frame-math-with-seashells/#comments Thu, 14 Sep 2017 04:00:51 +0000 https://realworldlearners.com/?p=259 ... At first we practiced filling up the spaces with shells and counting them until N got familiar enough with the visual that he could tell me at a glance how many shells there were (for numbers 1 - 10). Then I filled up the first one with 10 shells and put a few shells in the next 10-frame so he could see that for numbers greater than 10, you don't have to start counting from 1 every time -- you know there's already 10, so you can just add on. Here's our visual of the number 14, which is clearly, from the diagram, 10 + 4.

Then I extended the idea to include adding two numbers that were each less than 10. For example, I set 5 shells in the top 10-frame and 7 in the bottom one. Then he would take shells out of the bottom one to fill up missing spaces in the top one. So 5 + 7 became 10 + 2, since the 7 shells were used to fill up the 5 empty spaces and there were 2 left over. Then we went back to the previous idea of counting on from a full 10-frame to find out that there were 12 altogether. ... Read more...

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