**Source: PBS Learning Media**

**Resource Type: Video with Practice**

Students are guided through a conceptual understanding of multiplying fractions by whole numbers using repeated addition and visual fraction models.

*Skill: Apply and extend previous understandings of multiplication to multiply a fraction by a whole number; e.g., by using a visual such as a number line or area model.*

*Georgia Standard: MGSE4.NF.4*

**Source: PBS Learning Media**

**Resource Type: Lesson Plan**

Students are asked to recognize the equivalence of fractional tenths and decimals, and to do simple decimal addition to find lengths both shorter and longer than one. This Cyberchase activity is motivated by video clips in which the CyberSquad is trying to make repairs to railroad track that Hacker keeps sabotaging. The tracks are measured in decimal lengths, so the CyberSquad has to find out how to add decimals to get the lengths they need when they replace missing rails.

*Skill: Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100. For example, express 3/10 as 30/100, and add 3/10 + 4/100 = 34/100. Use decimal notation for fractions with denominators 10 or 100. For example, rewrite 0.62 as 62/100; describe a length as 0.62 meters; locate 0.62 on a number line diagram.*

*Georgia Standard: MGSE4.NF.5 MGSE4.NF.6*

**Source: PBS Learning Media**

**Resource Type: Video with Practice**

Students are asked to compare decimals and plot decimal numbers on a number line by reasoning about their relational values. Students have several opportunities to complete practice problems using number lines throughout this lesson.

*Skill: Compare two decimals to hundredths by reasoning about their size. Recognize that comparisons are valid only when the two decimals refer to the same whole. Record the results of comparisons with the symbols >, =, or <, and justify the conclusions, e.g., by using a visual model.*

*Georgia Standard: MGSE4.NF.7*

**Source: PBS Learning Media**

**Resource Type: Lesson Plan**

In this lesson, students use line segments, angles, and parallel and perpendicular lines in order to create a one-point perspective drawing.

*Skill: Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.*

*Georgia Standard: MGSE4.G.1*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

This segment introduces all the different kinds of quadrilaterals. Learn how to identify and describe parallelograms, trapezoids, rhombuses, rectangles, and squares.

*Skill: Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.*

*Georgia Standard: MGSE4.G.2*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

This lesson reviews how to determine whether a triangle is right, obtuse, or acute by angle and side attributes.

*Skill: Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.*

*Georgia Standard: MGSE4.G.2*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

Explains how to divide a shape equally through the lines of symmetry so that the two parts are identical. The symmetrical shapes can have one line of symmetry or more than one.

*Skill: Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.*

*Georgia Standard: MGSE4.G.3*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Activity**

Students identify lines of symmetry in a variety of shapes, then draw a figure and identify the lines of symmetry.

*Skill: Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.*

*Georgia Standard: MGSE4.G.3*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

This lesson demonstrates how to choose the most appropriate unit of measure for customary capacity.

*Skill: Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz; l, ml; hr, min, sec.*

*Georgia Standard: MGSE4.MD.1*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

This lesson describes the basic standard (English) capacity units of cup, pint, quart, and gallon. Examples of conversion between units are provided, as is practice estimating the capacity of several common containers. Students will understand the relationship between gallons, cups, quarts, and pints.

*Skill: Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz; l, ml; hr, min, sec.*

*Georgia Standard: MGSE4.MD.1*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

This lesson demonstrates how to relate benchmark measurements. The video begins by explaining that benchmarks are used to relate metric units to customary units. The video compares several units of measurement against each other to determine if one measurement is less than, greater than, or equal to another. There is an opportunity for the viewers to solve a problem before the video works out the problem and shows the correct answer.

*Skill: Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz; l, ml; hr, min, sec.*

*Georgia Standard: MGSE4.MD.1*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

This lesson describes how to choose the best customary unit of measurement.

*Georgia Standard: MGSE4.MD.1*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

This lesson shows how to make a table of lengths to solve a word problem.

*Skill: Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given in a larger unit in terms of a smaller unit. Represent measurement quantities using diagrams such as number-line diagrams that feature a measurement scale.*

*Georgia Standard: MGSE4.MD.2*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Activity**

In this constructed response task, students will multiply two-digit numbers and convert ounces to pounds.

*Skill: Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given in a larger unit in terms of a smaller unit. Represent measurement quantities using diagrams such as number-line diagrams that feature a measurement scale.*

*Georgia Standard: MGSE4.MD.*2

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video with Teacher Guide**

Presents real-life applications of area, perimeter, and coordinates using sports themes.

*Skill: Apply the area and perimeter formulas for rectangles in real-world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length by viewing the area formula as a multiplication equation with an unknown factor.*

*Georgia Standard: MGSE4.MD.3*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

In this lesson, you will use the problem-solving steps: understand, plan, solve, and check. Your task is to find the question asked, given the answer and other information about the sides of geometric shapes.

*Skill: Apply the area and perimeter formulas for rectangles in real-world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.*

*Georgia Standard: MGSE4.MD.3*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Activity**

In this constructed response task, students will find the perimeter and area of a rectangular shape.

*Skill: Apply the area and perimeter formulas for rectangles in real-world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.*

*Georgia Standard: MGSE4.MD.3*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Video**

In this lesson, you will estimate the area of irregular figures that are drawn on a grid. First, you will count all of the whole squares that the figure covers. Then you will count all of the half-squares that the figure covers and divide that amount by two. Adding these two numbers together gives you an estimate of the area of the figure.

*Skill: Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, then applying this technique to solve real-world problems.*

*Georgia Standard: MGSE4.MD.8*

**Source: PBS Learning Media**

**Resource Type: Lesson Plan**

Students are introduced to angles and learn their definitions and how to name them. They are also introduced to the idea of measuring angles, learn the number of degrees in a circle, half circle, and quarter circle, and the terms right, straight, acute, and obtuse. This Cyberchase activity is motivated by an episode in which the CyberSquad has to navigate with angles and distances to locate a treasure chest.

*Skill: Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement.*

*Georgia Standard: MGSE4.MD.5*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Lesson Plan**

Students explore how to identify angles, understand angle measure as it relates to degrees in a circle, and use a protractor to measure and sketch angles. Students also explore the difference between parallel, perpendicular, and intersecting lines

*and find examples of each in the world around them.**Skill: Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement.*

*Georgia Standard: MGSE4.MD.5*

**Source: Discovery Education**(Login required. Reference your school’s directions for accessing from home.)

**Resource Type: Activity**

In this constructed response task, students will draw specific geometric figures, identify parallel and perpendicular sides, and identify and draw lines of symmetry.

*Skill: Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement.*

*Georgia Standard: MGSE4.MD.5*