ALEX Resources

   View Standards     Standard(s): [MA2019] (4) 28 :

28. Identify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size.

a. Describe right triangles as a category, and identify right triangles.

In this interactive math activity from Math is Fun, students are able to "play" with quadrilaterals to get a better understanding of the properties associated with each type of quadrilateral. The interactive creates a visual representation of the properties that describe each type of quadrilateral (parallelogram, square, rectangle, rhombus, trapezoid, and kite). Students can change the angles and sides, but the attributes of the selected quadrilateral will always remain prominent allowing students to easily recognize the properties of each quadrilateral.

This activity results from the ALEX Resource Development Summit.

   View Standards     Standard(s): [MA2019] (4) 28 :

28. Identify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size.

a. Describe right triangles as a category, and identify right triangles.

This activity will give students the opportunity to demonstrate their knowledge of the properties of quadrilaterals. Students will match the quadrilaterals with the properties given in this fun shape matching game. This activity should be used at the end of a lesson on quadrilaterals to assess mastery of the properties of quadrilaterals.

This activity results from the ALEX Resource Development Summit. 

   View Standards     Standard(s): [MA2019] (4) 28 :

28. Identify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size.

a. Describe right triangles as a category, and identify right triangles.

This digital tool is a free animated video, Camp Quadrilaterals from Numberock. The video introduces students to quadrilaterals and teaches students how to classify quadrilaterals through a song with catchy lyrics describing properties of quadrilaterals.

This activity results from the ALEX Resource Development Summit.

   View Standards     Standard(s): [MA2019] (4) 28 :

28. Identify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size.

a. Describe right triangles as a category, and identify right triangles.

In this learning activity, students will collaboratively play an interactive online scavenger hunt for geometric figures including quadrilateral, trapezoid, rhombus, parallelogram, rectangle, square, right triangle, acute triangle, obtuse triangle, angles (right, acute, and obtuse), parallel lines, and perpendicular lines using the GooseChase app.  

This activity results from the ALEX Resource Gap Project.

   View Standards     Standard(s): [MA2019] (4) 28 :

28. Identify two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a specified size.

a. Describe right triangles as a category, and identify right triangles.

In this interactive activity, students will be led through steps to identify triangles based on their angles and sides. There are teaching activities as well as practice activities available. A handout that reviews the types of triangles taught during the activity can be printed. There is a karaoke song with printable lyrics that will help students learn and review the types of triangles. After utilizing this resource, the students can complete the short quiz to assess their understanding.