## Standards

CCSS.MATH.CONTENT.3.OA.A.1 – Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each.

CCSS.MATH.CONTENT.3.OA.A.3– Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities.

CCSS.MATH.CONTENT.3.OA.A.4-Determine the unknown whole number in a multiplication or division equation relating three whole numbers.

CCSS.MATH.CONTENT.3.OA.C.7– Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations.

## Summary

Our ‘Multiplying by n’ series is for Grade 3

The lesson plan and the PowerPoint presentation (PDF and PPTX files) for teachers are provided for download below. If you need to go back to basics, visit Multiplication as Repeated Addition.

• Students use visual drawings, manipulatives, and a number line to learn multiplication by 0 and 1, coupled with their verbal explanations.
• Students will create number sentences independently and with a partner.
• Learning and memorizing multiplication patterns will improve later understanding of division.
• Determine the unknown whole number in a multiplication equation relating three whole numbers.

## Time

20 to 30 minutes per lesson

## Lesson Plans

Below are multiplication lesson plan PDFs and their PowerPoints in both PDF and PPT format. 5 and 10 are consolidated into one lesson as they are closely related to each other, and multiplying by 10 is generally very easy to understand, as are 0 and 1.