Is It True or False?
Aligned to 1.OA.D.7 — Common Core State Standards for Mathematics.
What this lesson teaches
The equal sign means both sides are the same amount. We check if the two sides really match.
Worked examples
Example 1
Is 4 + 1 = 5 true? 4 + 1 = 5, and the other side is 5. They match, so it is true!
Example 2
Is 3 + 4 = 8 true? 3 + 4 is 7, and 7 is not 8. It is false.
Example 3
Is 2 + 5 = 4 + 3 true? The left side is 7 and the right side is 7. Both sides match, so it is true — the equal sign does not mean 'the answer comes next'.
Practice questions
- True or false: 3 + 2 = 6?
- True or false: 7 = 5 + 2?
- True or false: 4 + 4 = 8?
Watch the lesson
Every lesson comes with a video taught in English and Spanish — the same video the QR code in the printed workbook opens.
▶ Watch this lessonEn español
¿Es verdadero o falso?
El signo igual quiere decir que los dos lados son la misma cantidad. Revisamos si los dos lados de verdad son iguales.
Ejemplo 1: ¿Es 4 + 1 = 5 verdadero? 4 + 1 = 5, y el otro lado es 5. Son iguales, ¡así que es verdadero!
Ejemplo 2: ¿Es 3 + 4 = 8 verdadero? 3 + 4 es 7, y 7 no es 8. Es falso.
Ejemplo 3: ¿Es 2 + 5 = 4 + 3 verdadero? El lado izquierdo es 7 y el derecho es 7. Los dos lados son iguales, así que es verdadero — el signo igual no significa 'aquí viene la respuesta'.
More Operations & Algebraic Thinking lessons
Teach this lesson today
An AI tutor that guides with questions instead of just giving answers — all K–12 core subjects, every child in the family.
Start free — no card required