Angles & Angle Measurement | Parent Activity

Dear Families,

Your child is learning about angles - how to identify them, classify them (acute, right, obtuse, straight), and measure them. Angles are everywhere! These activities will help your child see angles in the real world and practice the math skills they're learning in school.

Why This Matters for the FAST Test

The Florida FAST assessment tests angle classification, measurement with a protractor, and finding unknown angle measures when angles share a side. Students need to understand that angle size is about "openness," not the length of the sides.

Angle Types - Quick Reference

Acute

Less than 90 degrees

(Sharp, small)

Right

Exactly 90 degrees

(Square corner)

Obtuse

90 to 180 degrees

(Wide, open)

Straight

Exactly 180 degrees

(Straight line)

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Activity 1: Angle Hunt Around the House

Find and classify angles in everyday objects

Walk around your home together looking for angles.
For each angle found, ask: "Is this acute, right, obtuse, or straight?"
Use an index card corner as a "right angle checker" - compare angles to it!
Places to look: Door hinges, clock hands, furniture corners, roof lines, pizza slices, opened books
Challenge: Can you find at least 3 of each type?

Tip:

Right angles are everywhere! Corners of tables, windows, doors, books, and screens are all right angles. These are your benchmarks for comparing other angles.

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Activity 2: Clock Angle Challenge

Use clock hands to explore angles

Look at a clock (analog with hands works best).
At 3:00, the hands form a right angle (90 degrees). What type is it?
At 6:00, the hands form a straight angle (180 degrees).
Ask: "What type of angle do the hands make at 1:00? At 5:00? At 10:00?"
Challenge: "Can you find a time when the hands make an acute angle? An obtuse angle?"

Tip:

Each hour on a clock represents 30 degrees (360 / 12 = 30). So at 2:00, the angle is about 60 degrees (acute!). At 4:00, it's about 120 degrees (obtuse!).

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Activity 3: Body Angle Game

Make angles with your arms and legs

Call out an angle type and have your child make it with their arms!
"Make a right angle with your elbow!" (Arm bent at 90 degrees)
"Make an acute angle with your arms!" (Hands close together)
"Make an obtuse angle!" (Arms spread wide but not straight)
Switch roles - have your child call out angles for you to make!

Tip:

This kinesthetic activity helps students feel the difference between angle types. A straight arm is 180 degrees, a bent elbow can be acute or obtuse depending on how much it bends!

Questions to Ask Your Child

"What type of angle is less than 90 degrees?"
"If I open the scissors wider, does the angle get bigger or smaller?"
"How can you tell if an angle is right, acute, or obtuse without measuring?"
"Two angles together make 90 degrees. If one is 40 degrees, what's the other?"
"Why does the length of the sides NOT change the angle size?"

Resumen en Espanol

Angulos y medicion: Su hijo esta aprendiendo a identificar y medir angulos. Los angulos estan en todas partes - esquinas, puertas, manecillas del reloj.

Tipos de angulos:

Agudo: Menos de 90 grados (pequeno, puntiagudo)
Recto: Exactamente 90 grados (esquina cuadrada)
Obtuso: Entre 90 y 180 grados (abierto, amplio)
Llano: Exactamente 180 grados (linea recta)

Actividades: Busquen angulos en la casa. Observen las manecillas del reloj. Hagan angulos con los brazos.

Home Activity: Angles & Angle Measurement

Dear Families,

Why This Matters for the FAST Test

Angle Types - Quick Reference

Activity 1: Angle Hunt Around the House

Activity 2: Clock Angle Challenge

Activity 3: Body Angle Game

Questions to Ask Your Child

Resumen en Espanol