1 Dot Nbt Dot A 1 Additional Ideas

Grade 1 Number Concepts (1.NBT.A.1)
Additional Ideas

 

1. Show clear jars with different amount of objects (i.e. a jar of linking cubes, jelly beans, paper clips, etc). Have students identify which jars they think have the most objects. Have students share their reasoning. Have groups/partners count the objects in each jar, write the number, and write the amount on a sticky note that can be placed on a number line. Have the class share their findings.

2. An estimation jar can be part of a weekly routine. Use a quart jar and place objects in the jar. Ask students to estimate the number of objects. Once estimates have been given, count the number of objects. Record the number on a chart. This chart should be displayed. The next week put different objects in the jar that are larger or smaller than the first set of objects. The number of objects from the weeks before, can help students estimate the new number of objects. For instance, if there are 35 unifix cubes the first week and the following week there are centimeter cubes which are smaller. Elicit from the students there are more centimeter cubes because they are smaller than the unifix cubes.

 

  Hundreds charts Links to an external site. and number lines Links to an external site. are important tools for understanding counting principles as well as concepts of number. Students should be exposed to and use both tools frequently.

 

  • A large hundreds chart should be displayed in the room for all students to see. Students should be encouraged to refer to the chart.
  • Groupable models: Beans and a small cup for 10 beans, Linking cubes, Plastic chain links
  • Pregrouped materials: Strips (ten connected squares) and squares Base-ten blocks, Beans and beans sticks (10 beans glued on a craft stick), Ten-frame
  • Place value ma Links to an external site.t, or chart graph paper with numbers from 1 to 120 in rows
  • Download 120 Chart (pdf)

 

 

 

 

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