Use properties of operations as strategies for solving problems.
Understand that the Distributive Property of Multiplication allows for numbers to be separated into parts (multiply a sum by multiplying each addend separately and then adding the products).
Identify the Commutative Property of Multiplication.
Understand that changing the order of factors, does not change the product (Commutative Property of Multiplication).
Distributive Property, Commutative Property
-Students practiced using the distributive property to solve double digit multiplication equations. Students used arrays to break apart the euqations into two groups and explained their thinking.
-Students demonstrated their understanding of the commutative property by using blocks to create arrays when changing the order of factors and seeing that the product does not change.
Techniques and Formulas
Understand that circles have specific measurements.
Understand circumference is the distance around the edge of a circle.
Understand radius is the distance from the center point to the edge of a circle.
Understand diameter is the distance from one side of the edge of a circle to the other.
Understand the relationship between the radius and the diameter of a circle (use the radius to find the diameter or the diameter to find the radius).
Circumference, Diameter, Radius
-Students used a compas to create different size circles and used string to measure the circumference
-Students then measured the circles for the radius and diameter to find the actual circumference of the circle