¿Qué necesitan las plantas para crecer?
Por Morgan Turano, editor de ciencia Para los padres y tutores: Ciencias Grados 2 y 3 Esta actividad En esta actividad, los estudiantes determinarán lo que necesitan las plantas para crecer, con un poco de ayuda de su parte. Los estudiantes expondrán al sol y al agua plantas de apio (celery) comprado en el supermercado…
Read MoreRead MoreRelaciones proporcionales
Por Michael Avidón, Editor de matemáticas Estas lecciones cubren los siguientes Estándares Estatales Comunes (CCSS) para 7.0 grado: 7.RP.A.2: Reconocen y representan relaciones de proporcionalidad entre cantidades. Deciden si dos cantidades se encuentran en una relación proporcional, por ejemplo, al evaluar relaciones equivalentes en una tabla o al trazar una gráfica en un plano de…
Read MoreRead MoreSummary and Vocabulary of Rational and Irrational Numbers
By Michael Avidon, math editor Vocabulary irrational number: a number that cannot be written as the quotient of two integers lower bound: or under-estimate, is a number that is less than the value of a given expression radical: a square root, cube root, or other root of a number, written with the symbol radicand: the…
Read MoreRead MoreAt-home math lessons: Rational and irrational numbers
By Michael Avidon, math editor For Guardians: Performance Expectations (CCSS) These lessons address the following Common Core State Standards (CCSS) for Grade 8: 8.NS.A.1: Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert…
Read MoreRead MoreIntroduction to Probability
By Michael Avidon, math editor For Guardians: Performance Expectations (CCSS) This lesson addresses the following Common Core State Standard (CCSS) for Grade 7: 7.SP.C.5: Understand that the probability of a chance event is a number between 0 and 1 that expresses the likelihood of the event occurring. Larger numbers indicate greater likelihood. A probability near…
Read MoreRead MoreProportional relationships lessons explained
By Michael Avidon, math editor One theme that occurs often in mathematics is the idea of representing something in multiple ways. In these lessons, relationships between two quantities are studied (such as the cost of a product and the amount purchased). These relationships are represented by verbal descriptions, 2-column tables, equations, and graphs. (Note: the…
Read MoreRead MoreHow the New Deal Created Jobs
By Shawn Downes, English Language Arts editor Under President Roosevelt’s leadership the Civilian Conservation Corps and Works Progress Administration helped stimulate the economy. Grade Band: 6–8 Beginning with the Stock Market crash in 1929 and lasting until the early 1940s, the Great Depression was a time of economic despair for millions of Americans. Businesses closed,…
Read MoreRead MoreWhat Do Plants Need To Grow?
By Morgan Turano, science editor For guardians: Grades 2 & 3 Science lesson More in this series Share our student version with your child. Also read our Spanish version. This Activity In this activity, students will determine what plants need to grow, with a little help from you. Students will expose store-bought celery to water…
Read MoreRead MoreLa pandemia de influenza de 1918
By Shawn Downes, English Language Arts editor El 11 de noviembre de 1918, terminó oficialmente la Primera Guerra Mundial. Muchas personas celebraban a medida que llegaba a su fin una de las peores guerras que el mundo había visto. Sin embargo, justo cuando los enemigos en el campo de batalla hacían las paces, un nuevo…
Read MoreRead MoreMaking a Solar Cooker (For Guardians)
By Morgan Turano, science editor This Activity In this activity, students will build their own solar cookers using a cardboard box, plastic wrap, and tape, with a little help from you. Students will test their solar ovens to confirm that sunlight plays a key role in this process, then modify their solar ovens to increase…
Read MoreRead More