We are continuing to explore different and efficient strategies for solving addition number sentences.
In Year Two it is important that students have automatic recall of “ten facts”. On Friday students were given 60 ten facts to solve and 2 minutes on the stopwatch. One student solved all 60 in less then the 2 minutes and our lowest score was 11. Some of you might like to take this challenge at home: 60 ten facts in two minutes (or less).
We have been practicing adding 10 to any 2-digit number (without the need for fingers).
To help visualise this strategy we used a number chart. Splat number is a fun way to do this.
We also have introduced two new strategies: DECOMPOSING and NUMBER LINES.
Using a number line to solve the equation 37 + 48 could look like this:
Click on this link: Decomposing to see an example of decomposing.
There are so many ways to solve addition equations. It is important that we try different strategies to find the one that works best for us.
Have fun doing some more practice at home. You might even be able to teach mum and dad a strategy they have never tried before 🙂