1. The density of an object is calculated using the formula 𝐷= 𝑚 𝑉
Bell Work - ALL
Activator
The density of an object is calculated using the formula
𝐷= 𝑚 𝑉
where m is the object’s mass and V is its volume. Gold has a density of 19.3 g/cm3. What is the volume of an amount of gold that has a mass of 96.5g?
Simplify.
(2 3 − 7 )( )
** HINT: Remember your 3 steps to ensure that a radical expression is fully simplified.

2. Standard
MGSE 9-12.A.REI.1 Using algebraic properties and the properties of real numbers, justify the steps of a simple, one-solution equation. Students should justify their own steps, or if given two or more steps of an equation, explain the progression from one step to the next using properties
MGSE 9-12.A.CED.4 Rearrange formulas to highlight a quantity of interest using the same reasoning as in solving equations.

3. Learning Target
I can rearrange formulas to highlight a quantity of interest based on algebraic properties.

4. I - Do
What is a quantity of interest?

5. I - Do 𝐴= 𝑓+𝑔 2 ℎ Solve for g.
How do we solve for a quantity of interest?
EXAMPLE 1:
𝐴= 𝑓+𝑔 2 ℎ Solve for g.

6. I - Do
EXAMPLE 2:
𝑥 𝑎 −1= 𝑦 𝑏 Solve for x.

8. WE - DO Work in groups. Work on your white boards Side A  1-9 ODD
YOU - DO
Work individually.
Work on your white boards
Side A  2 – 8 EVEN

9. I – Check
Solve for h. 𝑉= 1 3 𝜋 𝑟 2 ℎ

10. Homework
Worksheet: Side B