In this seaside symmetry activity, 2nd to 5th grade students find the line of symmetry in sea pictures and sort them as symmetrical or asymmetrical, with an answer key included.
This equivalent fractions 10 100 denominators activity is a frog board game for 4th and 5th grade with 24 fraction cards for renaming and adding tenths and hundredths. A practice page and answer key are included.
This measuring angles activity has 4th and 5th grade students add or subtract angle parts to find missing angles and match them to balloon cards. Answer key included.
This design your own theme park unit square activity has kids count unit squares to find the area of rides, then draw them on a park map. For 3rd-4th grade, answer key included.
This area and perimeter pirate activity has 3rd to 5th graders solve rectangle cards and match each pirate to the ship with the right answer and units. Answer key included.
This finding the perimeter activity for 3rd and 4th grade has students find missing sides and match 12 shapes to their perimeters. Answer key included, so checking is quick.
Using this Geometric Measurement Area Activity, students measure areas by counting unit square and matching square units to pictures.
In this they're equal equivalent fractions activity, 3rd-5th grade students match pizza fraction models to equal fractions and record each pair. Answer key included for easy checking.
This sort it organizing shapes activity has students sort 24 shape cards by rules like equal sides, right angles and parallel sides. Made for 3rd to 5th grade, with a practice page and answer key included.
This geometric measurement understanding unit squares activity has 3rd-4th grade students match area words to meanings and pictures, then count unit squares. Answer key included for quick checking.
This baking with geometry activity helps 4th and 5th grade students sort points, lines, line segments, rays and angles on a fun bake sale mat. A practice page and an answer key are included.
Using this Battle Shape Battleship Activity, students classify two-dimensional figures by their properties by playing a game of Battle Shape (a geometrical rendition of Battleship).
In this 4.MD.5 Common Core Activity, students recognize angles as obtuse, acute or right by playing this game of War with a partner!
Lines, angles and a protractor party!
Fourth grade geometry gives kids the words for what they see. They learn the difference between a line, a ray and a segment, spot parallel and perpendicular lines, and name angles as acute, right or obtuse. Then out come the protractors! Kids measure and draw angles in degrees, like a right angle = 90°. They also sort shapes by their sides and angles and find lines of symmetry. The click moment is realizing a square is a special rectangle, because it checks every box on the list.
Geometry is all about seeing and naming. These moves get kids drawing, measuring and sorting.
Kids draw a line, a ray and a segment, then label them with arrows and dots. "Does it go on forever? Which way?" Making the drawing themselves helps kids remember which one has arrows on both ends.
Why it works: children learn more from words and pictures together than from words alone (Mayer, 2009).
Try it withLines Rays and Segments WorksheetWorksheetsOpen it →Have kids use their arms as rays: straight up and out is a right angle, closer together is acute, wider is obtuse. Then they measure real angles with a protractor. The body motion makes the names stick.
Why it works: going from real objects to pictures to symbols is a core recommendation of the U.S. Department of Education's elementary math guide.
Try it withUp, Up, and Away! Measuring Angles ActivityActivitiesOpen it →Show an angle and give kids three seconds to call it: acute, right or obtuse? Then estimate the degrees before measuring. Quick checks build the gut sense that catches protractor reading mistakes.
Why it works: a big review of study methods ranked quick self-quizzing among the most powerful ways to remember (Dunlosky and colleagues, 2013).
Try it withWhat Kind of Angle WorksheetWorksheetsOpen it →Shapes are everywhere, so let kids go hunting.
ActivitiesKids fold and draw lines of symmetry on beach-themed pictures. Does that starfish have five lines?
Open Seaside Symmetry Activity →
WorksheetsOne partner describes a polygon by its sides and angles, the other guesses. "Four sides, two pairs parallel..."
Open Polygons Attributes Worksheet →
WorksheetsKids hunt for segments, parallel lines and right angles hiding in capital letters. The letter E is full of them!
Open Creating Line Segments Worksheet →Teacher favorites right now: Seaside Symmetry Activity, Equivalent Fractions 10 100 Denominators Activity and Up, Up, and Away! Measuring Angles Activity.
Fourth graders learn points, lines, rays and segments, parallel and perpendicular lines, and types of angles. They measure and draw angles with a protractor, classify shapes by their sides and angles, and find lines of symmetry.
Line up the center hole with the angle's vertex and one ray with the zero line. Then read the number where the other ray crosses. Estimating first, acute or obtuse, helps kids pick the right scale.
A line goes on forever in both directions. A ray starts at a point and goes on forever in one direction. A segment has two endpoints and a set length.
Parallel lines never meet, like railroad tracks. Perpendicular lines cross to make a right angle, like the corner of a window.
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