App of the Week: Missing NumbersWhat is it?
Missing Numbers focuses on problems involving addition and subtraction. Initially students solve problems through counting all the objects visible or through partitioning or segregation and counting all the objects given. Missing Numbers encourages students to use more sophisticated strategies such as counting backward and counting on. Missing Numbers scaffolds students through the use of seen and unseen (hidden) objects, allowing students to 'check' their answer by 'peeking' at the hidden objects and the ability to move objects to allow ease of counting.
Who is it good for?
This is a great introduction to problem solving for younger students. The four different games allow a great opportunity for differentiation.
- How Many - How many altogether?
- Show Me - Move the objects to show partitioning in subtraction.
- Addition - There are 11 altogether. How many are hiding in my hand?
- Subtraction - There are 4 altogether. How many are in the box.
CCSS Connection: Operations and Algebraic Thinking
For specific standards, click on the links below.
If you'd like to use this with your class, please let me know! I'd be happy to help!
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