Author: Stuart J. Murphy
Grades: K-1
COMMON CORE STANDARDS:
CCSS.Math.Content.K.OA.A.1
Represent addition and subtraction with objects, fingers, mental images,
drawings, expressions, or equations.
CCSS.Math.Content.K.OA.A.2
Solve addition and subtraction word problems, and add and subtract within 10
CCSS.Math.Content.1.OA.A.1
Use addition and subtraction within 20 to solve word problems involving
situations of adding to, taking from, putting together, taking apart, and comparing,
with unknowns in all positions.
·
CCSS.Math.Content.1.OA.B.4 Understand subtraction as an unknown-addend
problem. For example, subtract 10 – 8 by finding the number that makes 10
when added to 8.
SUMMARY: This book is about a boy that visits his mother at work
on the tenth floor. He has to help his mother run a few errands in the building
before they leave. But there is a catch! He has to calculate the different
stops they have to make to know which button he needs to press. This book shows how easy it is to bring
everyday concepts and ideas into the classroom and at home.
RATING: I give this book five stars. It can be incorporated
with the number line and makes the lesson concrete, relatable, and makes
subtraction fun.
ACTIVITY: Objects
that require subtraction.
·
Students would be placed in groups of two and
given worksheets and grapes or M&M’s.
·
Students would complete 4-5 questions on the
worksheet using the M&M’s or grapes.
I have 10 grapes and I ate 2 how many do I
have left?
I have 8 grapes and I gave 3 to a friend
how many do I have left?
·
After 15 minutes class will then regroup,
discuss worksheet and answers on the smart board.

