Unit 4, Lesson 23
What Happens When You Estimate? (Optional)
Grade 1
Preparation
Lesson Narrative
This lesson is optional because it does not address any new mathematical content standards. This lesson does provide students with an opportunity to apply precursor skills of mathematical modeling (MP4).
In this lesson, students explore quantities of objects in order to develop a sense of how big various two-digit numbers are, while determining whether estimating the quantity of objects is sufficient in a given situation, or if counting to find an exact amount is necessary.
None
- MLR8
- Explain (orally) how to decide if an estimate would be helpful when considering real-world contexts.
- Explain (orally) strategies for estimating the number of objects presented in images.
- Let's estimate how many objects are in a group.
Required Preparation
- Create a set of cards from the blackline master for each group of 2.
Suggested Centers
NoneTeacher Reflection Questions
Think about times when students were able to make connections to and build on the ideas of their peers during discussions today. What norms or routines allowed students to engage with other students’ ideas?