# Videos How to Use a Graduated Cylinder
This science video demonstrates how a graduated cylinder can help scientists observe and measure the volume of a liquid. Read and Write 1, 2, and 3
Counting and labeling grouped objects, writing numbers 1, 2 and 3 Understanding Proportional Relationships and Equivalent Ratios
Help students understand the concept of proportional relationships between two quantities. They will use this knowledge to write an equivalent ratio… Acid-Base Neutralization Reactions
This video demonstrates the neutralization reaction that takes place when combining a strong acid (hydrochloric acid) with a strong base (sodium… Dividing Decimals by Decimals
Students extend their knowledge of dividing decimals. This videos show them how to divide a decimal by another decimal. Grammar Song: Making Contractions
This grammar song shows how to write two words as one using contractions. How to Use Scatter Plots to Relate Two Different Data Sets
Show students how creating a scatter plot can show a relationship between two different sets of data. Regroup 1 Ten for 10 Ones
In this video, Marta learns how to regroup tens into ones in order to solve subtraction problems. Units of Time: Measure Elapsed Time
In this video, Marta learns how to calculate elapsed time using the clock as a visual. Classify Triangles

In this video, Zeke learns how to classify triangles by side length (equilateral, isosceles, scalene) and angle measurement (right, acute, and…