Create one continuous Grade 6 mathematics teaching animation with integrated clear narration, synchronized to the visuals. Use clean, high-contrast number tiles and accurate factor arrays; avoid childish clutter. Start with 12 arranged as 1×12, 2×6 and 3×4, then show 7 only as 1×7 and 7×1. Explain that 12 has more than two factors and is composite, while 7 has exactly two factors, 1 and itself, and is prime. Show examples 2, 3, 5, 7, 11, 13, 17, 19. Clearly state that 1 has only one factor and is neither prime nor composite. Transition to a 1–100 number grid. Demonstrate the Sieve of Eratosthenes step by step: cross out 1; circle 2 and cross out its other multiples; circle the next uncrossed number 3 and cross out its other multiples; repeat with 5 and 7; then reveal the remaining circled numbers as primes. Keep each step readable, with the number grid large enough to follow. Narration should explain why already-crossed numbers are composite and why the remaining numbers are prime. Finish with a quick check: “Is 21 prime or composite? How do you know?” Reveal 21 = 3 × 7, so it is composite. End by previewing that the next lesson explores number pairs and common factors. Narration must be included as the core voice track if the tool supports it; if audio generation is unavailable, retain this exact narration in the prompt and use the tool’s supported narration workflow without rewriting or duplicating the script. Do not add character dialogue to the core lesson.
6. Core narration reference (QA only)
This is the exact narration already embedded in the TomoMotion master prompt. Use it to check pronunciation, completeness and synchronization—not as a second competing script.
“Let’s begin with a number we can arrange in a rectangle: 12.”
“We can make 12 as 1 times 12, 2 times 6, or 3 times 4. These arrangements show factor pairs.”
“Now look at 7. We can arrange it only as 1 times 7. Its only factors are 1 and 7.”
“A number with exactly two factors, 1 and itself, is called a prime number. A number with more than two factors is called a composite number.”
“One is special. It has only one factor, so it is neither prime nor composite.”
“Let’s use the Sieve of Eratosthenes to find prime numbers up to 100. First, cross out 1. Circle 2, then cross out the other multiples of 2. Next, circle 3 and cross out its other multiples. Continue with the next uncrossed numbers, such as 5 and 7, crossing out their other multiples.”
“The numbers that remain uncrossed are prime. Their only factors are 1 and the number itself.”
“Quick check: 21 is composite because 21 equals 3 times 7. Next, we will explore pairs of numbers and the factors they share.”
