Unit 4, Lesson 6
Contemos colecciones más grandes
Grado 1
Preparation
Lesson Narrative
In the previous section, students organized and counted groups of ten and represented the base-ten structure of multiples of 10 using drawings, words, and numbers.
In this lesson, students learn that a number can be grouped into tens and ones. As students group and count collections of objects, they consider how to organize the objects into groups of 10 and count the leftover objects. Students use the collections to reason that you can have an amount of tens and some ones. At this time, students are not expected to write two-digit numbers, but they can attempt to do so. Students read and write numbers in later lessons.
The blackline master is used in both activities and in centers. Consider making multiple copies for each student.
- Action and Expression
- MLR8
- Interpret (orally and in writing) connecting cubes in towers of 10 that represent a number within 60.
- Represent (orally) strategies for organizing and counting collections of objects up to 60 (not multiples of 10).
- Organicemos, contemos y mostremos colecciones.
Required Materials
Activity 3
Required Preparation
- Each group of 2 needs 1 bag of 52 single connecting cubes.
- Gather materials from previous centers:
- Check It Off, Stages 1–3
- Five in a Row, Stages 1–4
- Number Puzzles, Stages 1 and 2
Suggested Centers
NoneTeacher Reflection Questions
How effective were your questions in supporting students’ thinking about units of ten today? What did students say or do that showed they were effective?