About This Lesson
A handout inspired by a great book called ‘One is a Snail; Ten is a Crab' by April Sayre. A lovely way to introduce tens & units or partitioning. Aligned with Common Core State Standards: 1.NBT.4, Number and Operations in Base Ten.
Subject
Math — Number and Operations in Base 10
Grade Level
Grades K-2
Resource Type
Activity
Standards Alignment
Common Core State Standards
License
Resources
Standards
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
Reviews
4.4
5 Reviews
SML Member
January 11, 2010
Great fun!
This works even without the book and is easily adaptable for differentiation, I even added a Sally Centipede for the G&T kids!
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This is a much nicer way of showing tens and units than drawing rods of ten blocks and single cubes on a sheet! Thank you. You have just brightened up my math lesson! All i need now is to get my hands on the book you mentioned..... :-)