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Partition circles and rectangles into two or four equal shares, and describe the shares and the wholes verbally.
1.NBT.A.1 Understand that 10 can be thought of as a bundle of 10 ones – called a “ten”.
1.NBT.A.2 Understand two-digit numbers are composed of ten(s) and one(s).
Use addition and subtraction within 20 to solve problems.
Use properties as strategies to add and subtract.
Distinguish between defining attributes versus non-defining attributes; build and draw shapes that possess defining attributes.
1.RA.B.6 Demonstrate that subtraction can be solved as an unknown-addend problem. 1.RA.C.7 Add and subtract within 20. 1.RA.C.8 Demonstrate fluency with addition and subtraction within 10.
Education Galaxy’s The Missouri Learning Standards (MLS) mastery program provides online assessment and practice for students in Grades K-6 to help build mastery towards the Missouri Learning Standards. Our unique online program is easy to use and enjoyable for both teachers and students. Students work on their Study Plans practicing important concepts while teachers pull formative assessment reports to identify the strengths and weaknesses of their classroom and individual students.