Lesson Materials

Share

Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. What do you know about measurement? Measure with centimeter cubes to find the length of reptiles. Then answer some questions about the length of reptiles by adding and subtracting within 100.

Math Mights was adapted from IM K-5 Math™ ©2021 by Illustrative Mathematics®, released under the Creative Commons Attribution 4.0 International License (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/.

Additions and adaptations are ©2021 by Strategic Intervention Solutions, LLC.

Related Lessons

  • Math Mights - 1st Grade

    Lesson 313

    Join Mrs. Markavich with a Mystery Math Mistake - see if you can help D.C. with his strategy! Next, we'll measure with different tools (connecting cubes and paper clips) and compare objects.

  • Math Mights - 2nd Grade

    Lesson 313

    Join Mrs. McCartney for a Mystery Math Mistake - Springling needs your help! Next, apply your knowledge of fractions to tell time by using half past, quarter till and quarter after.

  • Math Mights - 3rd Grade

    Lesson 313

    Join Ms. Askew for a Mystery Math Mistake. Springlinng needs your help! Next we'll partition, locate and label non-unit fractions on number lines!