Solutions to Problem 4.

This video is a lesson on words and word parts, specifically focusing on prefixes and suffixes. The teacher explains how these word parts can help students understand the meaning of unfamiliar words and how they can be used to create new...

Learn all about parabolas in conic sections. We will discover the basic definitions such as the vertex, focus, directrix, and axis of symmetry. We will also take a look a basic processes such as graphing, writing the equation and...

In this video, Marissa teaches 15 sight words that are important for second graders to know. She explains what sight words are and why they are important, and then goes through each word, providing a sentence example for each. The video...

In this video, Juliana introduces 22 sight words that are important for first graders to know during the third nine weeks of school. She provides examples of each word in a sentence to help students understand their meaning and usage....

Solutions to Problem 15.

Solutions to Problem 22.

This video provides a clear and concise explanation of modal auxiliary verbs and how they are used in English. The video covers various modal verbs such as can, could, will, would, should, may, might, must, ought, and shall, and explains...

Solutions to Problem 36.

Solutions to Problem 16.

Students from the Annapolis Maritime Museum's Oyster Education Partnership provide EarthEcho Expeditions team members Philippe and Ashlan Cousteau with an introduction to oyster reefs. The students demonstrate how to monitor the growth...

👉 Learn how to graph linear equations from the table of points. When given the table of points of a linear equation, we plot the x and y coordinates of the given table on the cartesian plane and join the ploted points to form a straight...

👉 Learn how to determine the end behavior of the graph of a factored polynomial function. To do this we will first need to make sure we have a polynomial in standard form (i.e. we will expand all factored terms) with descending powers....

👉 Learn how to find the slope between two points. The slope of a line is the steepness of the line. The horizontal line has a zero slope while the vertical line has an undefined slope. To determine the slope of a line passing through two...

In this video, Juliana introduces first-grade students to 15 high frequency nouns. She explains that high frequency nouns are words that are commonly seen in books and writing. Juliana goes through each noun, provides a sentence example,...

👉 Learn how to find the slope between two points. The slope of a line is the steepness of the line. The horizontal line has a zero slope while the vertical line has an undefined slope. To determine the slope of a line passing through two...

A small restaurant buys five sixths of a kilogram of sugar every morning. How much sugar does the restaurant buy in three days?

Learn how to compare two decimal numbers using your knowledge of place value!

👉 Learn about graphing linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. i.e. linear equations has no exponents on their variables. The graph of a linear equation is a straight line. To...

In this video, Marissa teaches 15 sight words that are important for second graders to know. She explains what sight words are and provides examples of each word in a sentence. The video also includes a review section and a word flash...

👉 In this video series you will learn how to divide integers. We will discuss basic division and then move to division using long division. Integers will be single digit as well as multi-digit problems. When a number the divisor does not...

👉 Learn about dividing by synthetic division. Synthetic division is a method of dividing polynomials by linear expressions. To divide using synthetic division, we equate the divisor to 0 and then solve for the variable, the solution for...

Understand that in a multi-digit number a digit in one place represents ten times as much as the digit to its right.

Solutions to Problem 18.