4.G.2 Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of a specified size. Recognize right triangles as a category, and identify right angles.
Essential Vocabulary:
quadrilateral
isosceles trapezoid
trapezoid
rhombus
parallelogram
rectangle
square
right triangle
two-dimensional
right
obtuse
acute
attributes
parallel
perpendicular
congruent
equilateral
isosceles
scalene
kite
Unit Overview:
In this unit, students will build upon their understanding of identifying various shapes through attributes. In this unit students will focus on identifying parallel lines and perpendicular lines while identifying the angles used from the previous units: acute, obtuse, and right. Students will investigate the concept of “same size and same shape”; however, the concept of congruence and similarity do not appear until middle school.
Strategies/Skills:
Students will build on their understanding of geometric shapes and go further with identifying and measuring angles. Students will model mastery of this concept through the following ways:
drawing
identifying
analyzing
Video Support:
Video support can be found on LearnZillion. https://learnzillion.com/
Classify two-dimensional figures by examining their properties
https://learnzillion.com/lessons/2879-classify-twodimensional-figures-by-examining-their-Properties
Classify triangles by examining their properties
https://learnzillion.com/lessons/3040-classify-triangles-by-examining-their-properties
Classify right triangles
https://learnzillion.com/lessons/3069-classify-right-triangles
Classify various quadrilaterals by describing their properties
https://learnzillion.com/lessons/2936-classify-various-quadrilaterals-by-describing-their-
properties
Classify quadrilaterals by examining their sides
https://learnzillion.com/lessons/2937-classify-quadrilaterals-by-examining-their-sides
oClassify parallelograms by examining their angles and sides
https://learnzillion.com/lessons/2988-classify-parallelograms-by-examining-their-angles-and-
sides
Questions to Ask When Helping Your Child with Math Homework
What is the problem you’re working on?
What do the directions say?
What do you already know that can help you solve the problem?
What have you done so far and where are you stuck?
Where can we find help in your notes?
Are there manipulatives, pictures, or models that would help?
Can you explain what you did in class today?
Did your teacher work examples that you could use?
Can you go onto another problem & come back to this one later?
Can you mark this problem so you can ask the teacher for an explanation tomorrow?
Essential Vocabulary:
quadrilateral
isosceles trapezoid
trapezoid
rhombus
parallelogram
rectangle
square
right triangle
two-dimensional
right
obtuse
acute
attributes
parallel
perpendicular
congruent
equilateral
isosceles
scalene
kite
Unit Overview:
In this unit, students will build upon their understanding of identifying various shapes through attributes. In this unit students will focus on identifying parallel lines and perpendicular lines while identifying the angles used from the previous units: acute, obtuse, and right. Students will investigate the concept of “same size and same shape”; however, the concept of congruence and similarity do not appear until middle school.
Strategies/Skills:
Students will build on their understanding of geometric shapes and go further with identifying and measuring angles. Students will model mastery of this concept through the following ways:
drawing
identifying
analyzing
Video Support:
Video support can be found on LearnZillion. https://learnzillion.com/
Classify two-dimensional figures by examining their properties
https://learnzillion.com/lessons/2879-classify-twodimensional-figures-by-examining-their-Properties
Classify triangles by examining their properties
https://learnzillion.com/lessons/3040-classify-triangles-by-examining-their-properties
Classify right triangles
https://learnzillion.com/lessons/3069-classify-right-triangles
Classify various quadrilaterals by describing their properties
https://learnzillion.com/lessons/2936-classify-various-quadrilaterals-by-describing-their-
properties
Classify quadrilaterals by examining their sides
https://learnzillion.com/lessons/2937-classify-quadrilaterals-by-examining-their-sides
oClassify parallelograms by examining their angles and sides
https://learnzillion.com/lessons/2988-classify-parallelograms-by-examining-their-angles-and-
sides
Questions to Ask When Helping Your Child with Math Homework
What is the problem you’re working on?
What do the directions say?
What do you already know that can help you solve the problem?
What have you done so far and where are you stuck?
Where can we find help in your notes?
Are there manipulatives, pictures, or models that would help?
Can you explain what you did in class today?
Did your teacher work examples that you could use?
Can you go onto another problem & come back to this one later?
Can you mark this problem so you can ask the teacher for an explanation tomorrow?