Common Core State Standards: 1.NBT.2a, 1.NBT.2b, 1.NBT.2c, 1.NBT.3, K.NBT.1
A wonderful "craftivity" to help students understand place value in a fun way. Includes 1 for each month + extras. Great for assessing.
A number is given and students move their sliders up and down to make that number. Have them jot it down for further reinforcement. With each number given, students tell how many 1's, 10's and 100's there are.
For more CCSS practice have students compare 2 numbers as >, < . Ask them to make the number that is 10 more or 10 less to include addition and subtraction practice as well.