We are currently studying: Chapter 8 Fact Families and Properties of Addition and Subtraction- Think Math
Students will understand that… • Numbers can be decomposed and composed in various ways to facilitate addition and subtraction • Addition and Subtraction are inverse operations Students will know… • definitions of: o number sentence o add o subtract o fact family o dime o nickel o penny o quarter o difference o sum o ones o tens o equal to o greater than o less than o word problem o solution Students will be able to: o Fluently add and subtract within 20 o Compare numbers using <, >, = o Add and subtract within 100 using place value, properties of operations, and the relationship of addition and subtraction
Our last unit of study was: Geometry
Students will understand that… • Shapes have certain defining attributes
Students will know: • definitions of: o circle o square o closed o polygon o attribute o angle o rectangle o triangle o open o sides o vertex o vertices o horizontal o vertical o corner o hexagon o pentagon o quadrilateral o area o grid o square o square unit o cube o face o two-dimensional o three-dimensional
Students will be able to • Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces • Identify triangles, quadrilaterals, pentagons, and hexagons, and cubes • Partition a rectangle into rows and columns of same-size squares and count to find the total number of them
Adding and Subtracting multi-digit numbers with regrouping and ungrouping
Adding Multi-Digit numbers with the use of: *addition number puzzles *standard algorithm *adding money amounts with the correct placement of the decimal point *adding dollars and cents *using knowledge of place value to add numbers
Subtracting Multi-Digit numbers with the use of: *subtraction number puzzles *standard algorithm *subtracting money amounts with the correct placement of the decimal point *subtracting dollars and cents *using knowledge of place value to subtract numbers