Students watch videos that explicitly review rounding decimals (one video covers rounding to the ten-thousandths though students are told they will round to the thousandths). Students complete practice problems and a calculator check that ask them to round decimals to places such as tenths (4.539 → 4.5), hundredths (3.582 → 3.58; 215.138 → 215.14), thousandths (activities reference thousandths) and to the nearest whole number (43.158 → 43). Students also write 3.485 in word, fraction, and expanded forms, showing attention to place-value decomposition.

Students are asked to round a decimal in the Basic Skills Review (#3: "Round 34.152 to the tenths and the hundredths" with answers 34.2 and 34.15). Students engage with decimal place value in Activity 3, where they multiply and divide decimals by powers of 10 and use a decimal place value chart. The parent/teacher notes and wrap-up explicitly list "Review what happens to whole numbers and decimal numbers when you multiply and divide by 10," reinforcing place-value thinking about decimals.

The Basic Skills Review #3 item 3 asks students to "Round 78.789 to the tenths and the hundredths," and the answer key gives the rounded results (78.8 and 78.79). Activity 4 (Basic Skills Review #3) is the only explicit place in the lesson text where students are asked to round a decimal.

The Parent Plan explicitly lists "Use place value understanding to round decimals to any place." In the One-Mile Run activity, students are asked to round times (e.g., 7.25 → 7, 7.82 → 8) and explain their reasoning. The Mystery Numbers activity asks students to find numbers that round to given targets (e.g., a number rounding to 700 and a number rounding to 8 × 10^1) and provides answers that include decimal values. The Parent Plan also states the steps for rounding whole and decimal numbers (identify target digit, look right, round up at 5 or greater).

Students complete multiple rounding tasks that explicitly involve decimals (for example, rounding 5.639 to the hundredths place with answer 5.64, rounding 5.17 to the nearest whole number and tenths, and rounding 34.029 to specified places). The Student Activity Pages and images include sets of decimal rounding problems (three-decimal-place numbers such as 1.574, 2.570, 2.404, 2.574 and three-digit decimals like 0.609) and practice rounding to tenths, hundredths, and whole numbers. The Parent Plan and Skills list explicitly state "Use place value understanding to round decimals to any place," and laminated decimal place value charts are provided for student use during practice.

The Parent Plan lists as a skill: "Use place value understanding to round decimals to any place." The Trading Cards Project Requirements tell students to "Round one number to a specific place if needed." The project requires collecting four numbers with decimals to the hundredths place, giving students decimal examples to work with. The sample card image also shows an explicit rounding example for a whole number (1,383 rounds to the hundreds: 1,400).

Students are asked to round 8.463 to the tenths and hundredths places on the Basic Skills Review #4, and the answer key shows tenths = 8.5 and hundredths = 8.46. The lesson reviews the relationship of wholes, tenths, hundredths, and thousandths in the reading and references a laminated decimal place value chart from Unit 1 that students can use. The Parent Plan and Questions to Discuss emphasize understanding place value relationships, which supports thinking about place-value-based operations.

Students are asked to use rounding for estimation (e.g., Round: 5.3 × 2.2 becomes 5 × 2) and to compare the estimated product to the product found by the standard algorithm. The lesson explicitly tells students to round both numbers to the nearest whole number to estimate products and includes a parent note and a suggested video about rounding decimals. Discussion questions and activities prompt students to use rounding to check whether the decimal point in a product is reasonable.

Students are asked to round a number in the Basic Skills Review #5 item that reads (Round 36.782 to the nearest whole number, the tenths, and the hundredths), and the answer key provides the rounded results (37; 36.8; 36.78). The Parent Plan also refers to using a laminated decimal place value chart to illustrate decimal place value when adding zeros, which students could use as a place-value reference.

Students are asked to round a decimal in the Basic Skills Review: "Round 22.159 to the hundredths place" (answer 22.16). Students place several decimals in order in item 6 of the same review (ordering 2.12, 2.16, 2.09, etc.), which requires use of decimal place value to compare. Students also solve decimal computation problems (e.g., multiply 266.3 × 3.9, divide 36.6 ÷ 0.3) that engage with decimal digits and place value.

Students are asked to convert fractions to decimal values and to round those decimals (Activity 2 shows examples: 7/15 = 0.47 and 5/12 = 0.42, noted as rounded). Activity 4 explicitly tells students that if they choose to find decimal values they should "round to the nearest hundredths." Several student pages instruct: "Round the value to the nearest hundredth as needed. Use a calculator!"

Day 3 Activity 5 directs students to measure box-shaped objects and "round each measurement to the nearest whole unit," asking them to record dimensions and volumes with labeled units. The instructions and table for "What's the Volume?" require students to choose units, round measurements to the nearest whole unit, and then use those measurements in volume calculations.

Students are instructed to measure the length, width, and height of each building in centimeters and to "Round to the nearest whole centimeter as needed." Students record these rounded measurements in the Dimensions (L x W x H) column and use them to calculate volumes. The activity requires students to perform rounding of measurement values to whole-number units.

Students are given a dedicated "Rounding Decimals" section with tasks that require rounding numbers to specified places (63.462 to the tenths place; 542.32 to the ones place; 5.288 to the nearest whole number; 4.526 to the hundredths place). The Parent Plan and Skills list explicitly state that students will practice "rounding to different place values" and include the skill "Use place value understanding to round decimals to any place." The answer key provides rounded results for the sample problems, indicating students are expected to produce and check rounded answers.