Decimals & Mosaics

• Eureka Math Book (page 77 in the PDF)
• Today’s Number 0.4
• White boards and Dry erase markers
• Decimals and Fractions Game
• Place Value Chart
• Projector and Document Camera
• Math Slides - Learning Intentions and Partners
• Student computers

Number Talks (5 Minutes)

Project the “Today’s number is 0.4.” Have students brainstorm different ways to show this number on their white boards. Spend 2 minutes working individually, then have them share in their groups to see if they can produce more. Lastly, call on volunteers to write their ideas on the whiteboard for the whole class to see. If this is something you have done before as a class, see if you can beat your previous record for representations. Ideas include a fraction strip, Fraction circle, taking the decimal to further place values, creating equations, equivalent fractions, a number line, or real-world representations like money.

Concept Building (10 Minutes)

Begin with the class decimal chant, “Decimals they are parts of a whole, by tenths, hundredths, thousandths they unroll.” Show the slide with the learning intentions for the day. Switch to the document camera to work though problems 1&2 in the Eureka lesson 5 problem set as a whole group. Reference the place value chart as needed. Afte the first section, call on students to tell next steps in the problem and solve them. Explain to the class that we will be using our knowledge of area and decimals to create some art tomorrow. Show them the planning sheet and the Mosiac Organizer. Explain that we will be filling these out during small group time with the teacher.

Group Rotations (30 Minutes)

Students will rotate through 3 different groups:

1. Group with the teacher working on their Mosiac Planner
   1. The teacher will help the students pick colors and plan ratios for the project.
2. Group playing the Decimals and Fractions Game with partners
3. Group work on math fluency though Imagine Math computer program

Discussion (5 minutes)

Bring the students back to their desks and have a discussion. Let’s talk about the Decimal game you all played. How were the decimal form and fraction form the same or different? What patterns did you notice? Did you find any hacks, cheats, or strategies to make the math easier?

Exit Ticket (10 minutes)

Students will complete the exit ticket for unit 6 lesson 5 in their Eureka workbooks and place them in the red, yellow, or green bins to show how well they feel they understand the concepts. Red means they need more help. Yellow means they almost understand. Green means they understand.

• Projector and Document Camera
• Mosiac Slides
• Math Partners List
• Construction Paper (You may want to precut squares)
• Scissors
• Glue
• Mosiac Builder Sheet
• Mosiac Preparation Sheet (from yesterday)
• Decimals and Fractions Game
• Sticky notes and pencils

Number Talks (5 Minutes) Project the cow mosaic (First slide) and ask the class, what do you notice, what do you wonder. If they need some help, ask them things like “how many squares do you see? How many squares are brown? Does it remind you of anything?

Concept Building (10 Minutes) Show the slide and go over the learning indentations (Slide 2) with the students. Then, watch the Video “What is a Mosaic? Early Roman Mosaics for Kids” (Slide 3) Ask the students: What are mosaics? What surprised you? What role does creativity play in creating these mosaics? Continue to move through the remaining slides with the following script:

Slide 4 Ancient Romans were masters of mosaic art. They would adorn their buildings with elaborate designs, frequently drawing inspiration fromnature or geometry as seen in this slide. What materials do you see being used here? Why do you think mosaics were so common in Roman Culture?

Slide 5 Fast forward to modern times and travel to Hanoi Vietnam. The Mosiac Mural stretches over 4 kilometers. This is one of the longest ceramic murals in the world! What impact do you think this muralhad on the community? What message do you think they were tryingto share?

Slide 6 Closer to home, Philadelphia’s Magic Gardens is an immersive art environment created by artist Isaiah Zagar. What emotions does this evoke in you?

Create mosaic (20 Minutes) Return the mosaic planning sheets and a Mosaic builder sheet to the students. Go over the instructions (Slide 7). Give students time to create their mosaics. Walk around helping those who are struggling with ideas or motor skills. Students who finish early may partner up and play the Decimals and Fractions Game or see alternative options at the end of the lesson plan.

Gallery Walk (15 minutes) This part of the assignment may need to be moved to the following day due to time constraints. Show slide 8 stating the expectations for the gallery walk. Students will observe their peers’ mosaics and leave constructive feedback. Students should observe all the mosaics and leave notes on at least two.

1. Students could create their mosaics with Perler beads.
2. Mosaics could be used as sewing plans for hot pads. Reduce the grid to 5X5 for time considerations and have students create equivalent fractions on their preparation sheets.
3. Students with motor control difficulties could create mosaics through a computer program. Google Slides