Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.
- Assessment Limits :
Triangles: equilateral, equiangular, isosceles, scalene, acute, right, obtuse. Quadrilaterals: parallelograms, rectangles, squares, rhombi, trapezoids. Other polygons may be included where appropriate. Items that include trapezoids must consider both the inclusive and exclusive definitions. Items may not use the term "kite" but may include the figure. - Calculator :
No
- Context :
No context
- Test Item #: Sample Item 1
- Question:
Select all the obtuse triangles.
- Difficulty: N/A
- Type: MS: Multiselect
- Test Item #: Sample Item 2
- Question:
Which figure is an acute triangle?
- Difficulty: N/A
- Type: MC: Multiple Choice
- Test Item #: Sample Item 3
- Question:
Fill in the circles to select all the properties that always belong to each shape.
- Difficulty: N/A
- Type: MI: Matching Item
- Test Item #: Sample Item 4
- Question:
Select all the shapes that always contain perpendicular sides.
- Difficulty: N/A
- Type: MS: Multiselect
Related Courses
Related Access Points
Related Resources
Formative Assessments
Image/Photograph
Lesson Plans
Original Student Tutorials
Problem-Solving Task
Teaching Ideas
Tutorials
MFAS Formative Assessments
Students are shown three triangles that fit a rule (each has a right angle) and are asked to determine which of three other triangles also fit the rule.
Students are asked to use shape descriptions to sketch shapes and explain why some cannot be sketched.
Students are asked to use shape descriptions to sketch shapes and explain why some cannot be sketched.
Original Student Tutorials Mathematics - Grades K-5
Overcome the nightmare of quadrilateral classification based on the presence of parallel, perpendicular, and congruent sides as you complete this interactive tutorial.
Identify right triangles and explain the properties shared by all right triangles in this interactive tutorial.
Student Resources
Original Student Tutorials
Overcome the nightmare of quadrilateral classification based on the presence of parallel, perpendicular, and congruent sides as you complete this interactive tutorial.
Type: Original Student Tutorial
Identify right triangles and explain the properties shared by all right triangles in this interactive tutorial.
Type: Original Student Tutorial
Problem-Solving Task
The purpose of this task is for students to measure angles and decide whether the triangles are right or not. Students should already understand concepts of angle measurement and know how to measure angles using a protractor before working on this task.
Type: Problem-Solving Task
Tutorials
This Khan Academy tutorial video presents examples and explanations for categorizations of perpendicular sides and right, obtuse, and acute triangles.
Type: Tutorial
In this Khan Academy tutorial video triangles are categorized by angles or side lengths of a specified size.
Type: Tutorial
Parent Resources
Image/Photograph
In this lesson, you will find clip art and various illustrations of polygons, circles, ellipses, star polygons, and inscribed shapes.
Type: Image/Photograph
Problem-Solving Task
The purpose of this task is for students to measure angles and decide whether the triangles are right or not. Students should already understand concepts of angle measurement and know how to measure angles using a protractor before working on this task.
Type: Problem-Solving Task