MathActive Lessons
             for Grades 7-8

1.
(7-8) Area of Circles with Dive Dog
Start Lesson
Teacher Page (PDF)
Solve problems involving the area of a circle. Solve problems for the areas of parallelograms, triangles, and circles.
2.
(7-8) Circumference Fair
Start Lesson
Teacher Guide (PDF)
Identify the diameter, radius and circumference of a circle. Solve problems involving the circumference of a circle.
3.
(7-8) Cone and Its Net
Start Lesson
Teacher Guide (PDF)
Identify the net (two-dimensional representation) that corresponds to a rectangular prism, cone, or cylinder. Recognize the three dimensional figure represented by a net. Make a net to represent a three-dimensional object. Make a three-dimensional model from a net.
4.
(7-8) Cones Cylinders Spheres
Start Lesson
Teacher Guide (PDF)
Classify prisms, pyramids, cones, and cylinders by base shape and lateral surface shape. Identify the net (two-dimensional representation) that corresponds to a rectangular prism, cone, or cylinder. Recognize the three dimensional figure represented by a net.
5.
(7-8) Cones Cylinders Spheres With English Voice
Start Lesson
Teacher Guide (PDF)
Classify prisms, pyramids, cones, and cylinders by base shape and lateral surface shape. Identify the net (two-dimensional representation) that corresponds to a rectangular prism, cone, or cylinder. Recognize the three dimensional figure represented by a net.
6.
(7-8) Cones Cylinders Spheres With Navajo Voice
Start Lesson
Teacher Guide (PDF)
Classify prisms, pyramids, cones, and cylinders by base shape and lateral surface shape. Identify the net (two-dimensional representation) that corresponds to a rectangular prism, cone, or cylinder. Recognize the three dimensional figure represented by a net.
7.
(7-8) Cones Cylinders Spheres With Spanish Voice
Start Lesson
Teacher Guide (PDF)
Classify prisms, pyramids, cones, and cylinders by base shape and lateral surface shape. Identify the net (two-dimensional representation) that corresponds to a rectangular prism, cone, or cylinder. Recognize the three dimensional figure represented by a net.
8.
(7-8) Congruency with Robot Gobot
Start Lesson
Teacher Guide (PDF)
Identify the properties of two- and three-dimensional geometric figures using appropriate terminology and vocabulary. Draw two congruent geometric figures. Identify corresponding parts of congruent polygons as congruent. Draw a model that demonstrates basic geometric relationships such as parallelism, perpendicularity, similarity/proportionality, and congruence.
9.
(7-8) Cylinder and Its Net
Start Lesson
Teacher Guide (PDF)
Identify the net (two-dimensional representation) that corresponds to a rectangular prism, cone, or cylinder. Recognize the three dimensional figure represented by a net. Make a net to represent a three-dimensional object. Make a three-dimensional model from a net.
10.
(7-8) Finding Patterns in Tiles
Start Lesson
Teacher Guide (PDF)
This is not only a good review of area and perimeter but extends that into useful activities of prediction, establishing and measuring by units, using formulas, and finding that charts help you create patterns in mathematics. "N" as a variable is briefly used in the SEE section. The DIG DEEPER section extends this concept.
11.
(7-8) Linear/Nonlinear Functions
Start Lesson
Teacher Guide (PDF)
Distinguish between linear and nonlinear functions, given graphic examples.
12.
(7-8) Prisms - Turn Up the Volume
Start Lesson
Teacher Guide (PDF)
Solve problems involving the volume of rectangular prisms and cylinders.
13.
(7-8) Prisms - Turn Up the Volume with English Voice
Start Lesson
Teacher Guide (PDF)
Solve problems involving the volume of rectangular prisms and cylinders.
14.
(7-8) Prisms - Turn Up the Volume with Navajo Voice
Start Lesson
Teacher Guide (PDF)
Solve problems involving the volume of rectangular prisms and cylinders.
15.
(7-8) Prisms - Turn Up the Volume with Spanish Voice
Start Lesson
Teacher Guide (PDF)
Solve problems involving the volume of rectangular prisms and cylinders.
16.
(7-8) Proportional Similarities
Start Lesson
Teacher Guide (PDF)
Students learn that similar figures have congruent corresponding angles and proportional corresponding sides. They learn the symbol for similar ~ and see many examples. Eventually students will be able to determine the ratio of corresponding sides and will have to choose between the appropriate terms of equal, congruent, similar, and approximate by symbol.
17.
(7-8) Protractors - Angle Action Part 1
Start Lesson
Teacher Guide (PDF)
Measure angles using a protractor.
18.
(7-8) Pythagorean Theorem
Start Lesson
Teacher Guide (PDF)
Solve applied problems using the Pythagorean theorem. Solve problems using special case right triangles.
19.
(7-8) Rectangular Prism and Its Net
Start Lesson
Teacher Guide (PDF)
Recognize the three dimensional figure represented by a net. Make a net to represent a three-dimensional object.
20.
(7-8) Same Area and Perimeter - Shape Detective
Start Lesson
Teacher Guide (PDF)
Distinguish between the perimeter and area in contextual situations. Identify polygons having the same perimeter or area.
21.
(7-8) Same Area and Perimeter - Shape Detective/English
Start Lesson
Teacher Guide (PDF)
Distinguish between the perimeter and area in contextual situations. Identify polygons having the same perimeter or area.
22.
(7-8) Same Area and Perimeter - Shape Detective/Navajo
Start Lesson
Teacher Guide (PDF)
Distinguish between the perimeter and area in contextual situations. Identify polygons having the same perimeter or area.
23.
(7-8) Same Area and Perimeter - Shape Detective/Spanish
Start Lesson
Teacher Guide (PDF)
Distinguish between the perimeter and area in contextual situations. Identify polygons having the same perimeter or area.
24.
(7-8) Transformation Trio
Start Lesson
Teacher Guide (PDF)
In both LOOK and SEE, students will see many examples of rotation, translation and reflection transformations. Don't miss the review (explanations) of these 3 types of transformations in the SEE section. Students will practice selecting the called-for type of transformation then be able to select the figure in the correct position to finish a transformation.
25.
(7-8) Transformation Trio with English Voice
Start Lesson
Teacher Guide (PDF)
In both LOOK and SEE, students will see many examples of rotation, translation and reflection transformations. Don't miss the review (explanations) of these 3 types of transformations in the SEE section. Students will practice selecting the called-for type of transformation then be able to select the figure in the correct position to finish a transformation.
26.
(7-8) Transformation Trio with Navajo Voice
Start Lesson
Teacher Guide (PDF)
In both LOOK and SEE, students will see many examples of rotation, translation and reflection transformations. Don't miss the review (explanations) of these 3 types of transformations in the SEE section. Students will practice selecting the called-for type of transformation then be able to select the figure in the correct position to finish a transformation.
27.
(7-8) Transformation Trio with Spanish Voice
Start Lesson
Teacher Guide (PDF)
In both LOOK and SEE, students will see many examples of rotation, translation and reflection transformations. Don't miss the review (explanations) of these 3 types of transformations in the SEE section. Students will practice selecting the called-for type of transformation then be able to select the figure in the correct position to finish a transformation.
28.
(7-8) Transformations - Shapes on the Move
Start Lesson
Teacher Guide (PDF)
Students see objects turn, slide and flip many times to illustrate rotation, translation and reflection transformations. They must learn to distinguish the pairs of words that describe the action to be able to demonstrate understanding. They are given many opportunities to practice selecting the correct action, plus the correct terms. The DIG DEEPER section shows a translation on a coordinate grid moved by specified units and direction. This lesson also has English, Navajo and Spanish narrations and scripts.
29.
(7-8) Transformations - Shapes on the Move/English Voice
Start Lesson
Teacher Guide (PDF)
Students see objects turn, slide and flip many times to illustrate rotation, translation and reflection transformations. They must learn to distinguish the pairs of words that describe the action to be able to demonstrate understanding. They are given many opportunities to practice selecting the correct action, plus the correct terms. The DIG DEEPER section shows a translation on a coordinate grid moved by specified units and direction. This lesson also has Navajo and Spanish narrations and scripts.
30.
(7-8) Transformations - Shapes on the Move/Navajo Voice
Start Lesson
Teacher Guide (PDF)
Students see objects turn, slide and flip many times to illustrate rotation, translation and reflection transformations. They must learn to distinguish the pairs of words that describe the action to be able to demonstrate understanding. They are given many opportunities to practice selecting the correct action, plus the correct terms. The DIG DEEPER section shows a translation on a coordinate grid moved by specified units and direction. This lesson also has English and Spanish narrations and scripts.
31.
(7-8) Transformations - Shapes on the Move/Spanish Voice
Start Lesson
Teacher Guide (PDF)
Students see objects turn, slide and flip many times to illustrate rotation, translation and reflection transformations. They must learn to distinguish the pairs of words that describe the action to be able to demonstrate understanding. They are given many opportunities to practice selecting the correct action, plus the correct terms. The DIG DEEPER section shows a translation on a coordinate grid moved by specified units and direction. This lesson also has English andNavajonarrations and scripts.