solving situation. alue concepts in a problem- COMMON CORE SMP SMP 1, SMP 2, SMP 4, SMP 5, SMP 6 MATERIALS Pouch: Base Ten Blocks Online: Place-Value Operations Board GROUPING Work in pairs. GETTING STARTED One student reads the clues to the other. The second student uses blocks to construct a model of the missing number(s). Students alternate turns. 1. I have four base ten blocks. Some are 2. I have eight base ten blocks. Some are rods and some are units. Their value is units and some are rods. Their value is less than 25. an odd number between 50 and 60. Who am I? Who am I? 3. I have six base ten blocks. Some are 4. I have six base ten blocks. Some are rods and some are units. Their value is flats, some are rods, and some are between 20 and 40. units. I am a palindrome. Who am I? Who am