https://www.generationgenius.com
广告Math lessons & videos for grades K-8. State-standards aligned. Trusted by teachers. Includes 5E Lesson Plans, Readings, Quiz Games, Practice Problems & More. Try it Free
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Supports NGSS · Partnered with NSTA · Lesson Plans & Activities · Loved by Kids
Types: Grades K-2 Science, Grades 3-5 Science, Grades 6-8 Science