Students added within 100 in grade 1. This lesson serves as a formative assessment of how students find the value of sums with larger addends. Throughout the lesson, monitor for students who look for and make use of the structure of place value to add tens to tens and ones to ones (MP7).
Tell students that, at the end of the lesson, they will be asked to reflect on the norms and they can add norms about working with a partner.
- Add within 50 in a way that makes sense to them.
- Sumemos hasta 50.
- Create connecting cubes in towers of 10 and singles.
Teacher Reflection Questions
- Number Puzzles: Addition and Subtraction (1–4), Stage 1: Within 10 (Supporting)
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