1Begin with free exploration (5-7 minutes):
Students investigate base-10 blocks, discovering relationships between units, tens, and hundreds
Guide observations: 'How many unit cubes equal one ten-rod?'
Have students build simple numbers of their choice and explain their representations
2Introduce place value mat and vocabulary:
Model how to place blocks in appropriate columns
Demonstrate the connection between physical representation and numeric notation
Practice reading numbers in standard and expanded form
3Guided exploration with partners (15-20 minutes):
Start with representation tasks: 'Show 47 using base-10 blocks'
Progress to comparison tasks: 'Show two different numbers where the tens place is greater than the ones place'
Move to operation tasks: 'Show what happens when you add 10 to 35'
Include trading/regrouping tasks: 'Show 43 + 29 using blocks, trading as needed'
4Problem-solving challenges (10-15 minutes):
Students select task cards with place value scenarios
Record solutions on worksheets using numbers and drawings
Share strategies with nearby pairs
5Connection to abstract representation (5-7 minutes):
Remove manipulatives and practice visualizing the same problems
Discuss how thinking about the blocks helps solve problems mentally
6Reflection: Students complete an exit ticket explaining how base-10 blocks helped them understand place value, using specific examples from the lesson.