Description

Scratch Mathematics – 4

Welcome to Scratch Mathematics – 4! This level brings it all together with in-depth geometry, symmetry, number theory, and applied problem solving — built through creative Scratch projects.

Each challenge empowers learners to analyze, visualize, and express math ideas with code.

Scratch Mathematics – Course Lessons

Lesson 61 – Rotate to Fit Rotate shapes to match targets and explore geometric transformations.	Lesson 62 – Explore Triangle Heights Draw and compare triangle heights from different vertices.	Lesson 63 – Pythagorean Theorem Calculator Use interactive models to apply and visualize the Pythagorean Theorem.
Lesson 64 – Boat Tracker Plot a boat’s path and direction using coordinates and angles.	Lesson 65 – Try and Solve Tackle math puzzles with trial and error and smart guesses.	Lesson 66 – Estimate the Area Use unit squares to estimate the area of irregular shapes.
Lesson 67 – Polygon Area Calculation Calculate the area of various polygons using math and code.	Lesson 68 – Symmetry Sketchpad Draw designs with one or two lines of symmetry.	Lesson 69 – Symmetry Detective Identify and count lines of symmetry in shapes and patterns.
Lesson 70 – Single Symmetry Challenge Create designs that have exactly one line of symmetry.	Lesson 71 – Symmetry in Motion Animate mirrored objects and watch symmetry in action.	Lesson 72 – Symmetry Sorter Sort shapes based on the number of symmetry lines.
Lesson 73 – Create a Rotational Design Use angles and copies to build beautiful rotating art.	Lesson 74 – Factor Finder Find and display all the factors of any given number.	Lesson 75 – Perfect Numbers Explorer Discover and test numbers that are equal to the sum of their factors.
Lesson 76 – Divisible or Not Check divisibility rules using interactive testing tools.	Lesson 77 – Prime Time Identify prime numbers and build a prime number visualizer.	Lesson 78 – Circle Stitcher Create stunning geometric patterns by connecting dots around a circle.
Lesson 79 – Comparing Fractions Compare two fractions by choosing the correct symbol and get instant feedback.	Lesson 80 – Which Color Comes Next? Predict the color at any position in a repeating pattern and sharpen your logic with every guess!