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2-D to 3-D Paper Folding

Resource:
2-D to 3-D Paper Folding

Activity that can be used either as an introduction to the unit or can be used later in the unit to informally assess student thinking.

All Resources From:
• Unit 5

#### Extending to Three Dimensions

Activity Sequence for Unit 0
Resource:
Activity Sequence for Unit 0

This is my activity sequence from Unit 0.  I've "borrowed" heavily from:
Constance Bowen (a2i Teacher)
Jo Boaler (See https://www.youcubed.org/)
a2i (for Mindset and Instructional Activities)

A Midpoint Miracle

Resource:
A Midpoint Miracle

This classroom task gives students the opportunity to prove a surprising fact about quadrilaterals: that if we join the midpoints of an arbitrary quadrilateral to form a new quadrilateral, then the new quadrilateral is a parallelogram, even if the original quadrilateral was not.

All Resources From:
• Unit 6

#### Coordinate Geometry

Angle Bisector and Perpendicular at a Point

Resource:
Angle Bisector and Perpendicular at a Point

The last construction lesson in the series is for the Angle Bisector.  I struggled with the scaffold to get students to make the first arc on the page.  After they made the arc, the rest of the page was achievable by all.  I was especially impressed with how easy it was to transition from the first construction to the second for students.

All Resources From:
• Unit 1

#### Tools of Geometry

Apple Mothership

Resource:
Apple Mothership

This resource is a Dan Meyer's 3 Acts. The information about the Apple Mothership is provided to elicit student curiousity around how many people per square foot can fit in the space. Students will request information they need to apply volume, density and proportional reasoning in order to answer the questions that are generated.

All Resources From:
• Unit 5

#### Extending to Three Dimensions

Big Nickel (3 Acts)

Resource:
Big Nickel (3 Acts)

Students generate questions based on a short clip of a giant nickel monument. They are given the opportunity to ask for information they would need in order to answer the question of interest generated by the group. This is something that can be used to connect back to Right Triangle Trigonometry. This activity follows the structure of Dan Meyer's Three Acts.

All Resources From:
• Unit 5

#### Extending to Three Dimensions

Building Inverse and Composition Functions for temperature conversions

Resource:
Building Inverse and Composition Functions for temperature conversions

Interpreting functions conversion from Celsius to Fahrenheit and Kelvin to Celsius. Then create functions converting Kelvin to Celsius and it's inverse as well as explain what variables represent.
Note the wording might be easier for students to understand if "conversion" or "convert" were used. It might be useful to mention that the USA uses Fahrenheit, but most other countries use Celsius, and scientists use Kelvins.

All Resources From:
• Unit 1

#### Families of Functions

Car Caravan

Resource:
Car Caravan

This Dan Meyer's 3 Acts lesson elicits student curiosity around how many toy cars are in the given image. Students generate the information they will need in order to answer this question based on the ideas that students have for answering this question.

All Resources From:
• Unit 5

#### Extending to Three Dimensions

Changing Parameters

Resource:
Changing Parameters

This interactive graph from Desmos allows you (or a student) to change the parameters of a sine function to determine how those parameters impact the equation itself. One way to use this is to have a pair of students come up to the front of the room to work on determining which parameter does what, while other students watch the changing parameters and attempt to come up with their own conclusions.

All Resources From:
• Unit 3

#### Trigonometric Functions

Classifying Triangles based on angle measures

Resource:
Classifying Triangles based on angle measures

Students solve for missing interior angles in triangles.  Triangles are on individual cards.  Students determine appropriate "angle" and "side" terms (acute, obtuse, right, scalene, isosceles, equilateral) and place the triangle cards into the table.  Opportunity to address why certain descriptions are impossible (such as an equilateral right triangle) and why it's impossible to have a triangle with more than 1 obtuse angle.

All Resources From:
• Unit 2

#### Proofs about Congruence

Comparing decimal exponent to integer exponents to verify calculation

Resource:
Comparing decimal exponent to integer exponents to verify calculation

Can entail discussion about the equivalence of radicals and exponents.

All Resources From:
• Unit 2

#### Exponential Functions

Construction Puzzles

Resource:
Construction Puzzles

This website has a sequence of construction challenges that are done in an online platform using only two tools, constructing a circle and drawing (or extending) a line segment. This could be an excellent supplemental or homework resource. The challenges are addictive and quickly lead to fluency with constructions.

All Resources From:
• Unit 1