Refer students back to the display of the Addition
Strategies chart that they created earlier in the lesson.
Review the strategies that have already been listed.
For example, using connecting cubes to count, using a
number line, and thinking about ten frames.
Remind students that they have learned some new
strategies that can help them think about addition.
Add using turn-around facts, adding zero, and using a
fact we know to the chart.
- Using turn-around facts is another strategy that we
have learned. Who can share an example of how
turn-around facts can help us? (Possible response:
If you know a problem like 3 + 4 = 7 you also
know
4 + 3 = 7 because the numbers can be
turned around but the answer is the same.)
- How does knowing about adding zero help you?
(Possible response: When you add zero to any
number the sum will be the same as the number
you are adding to zero.)
- Will someone share an example that we can also
add to help explain our thinking? (Possible
response: 6 apples + 0 apples = 6 apples)
- The last strategy that we talked about was using a
fact we already know. How can this help you when
you are solving a problem? (Possible response: If
you know 8 + 2 = 10 you can use that to find
7 + 2 = 9 because it will be one less.)
Display the completed Sorting Mat where students can refer to
it in later lessons.
