Adding and Subtracting Time in Word Problems

By (date), when given (10) word problems involving the addition and subtraction of time intervals in minutes, (name) will correctly write the new time or the time... interval (e.g. "20 minutes passed from start to finish of recess", "8:35pm is when recess ended") scoring (8/10) in (4 out of 5) time word problem activities.
  • By (date), when given (10) word problems involving the addition and subtraction of time intervals in minutes and a printed face of a clock without hands for each problem, (name) will correctly draw the problem using the clock faces and write the new time or the time interval (e.g. "20 minutes passed from start to finish of recess", "8:35pm is when recess ended") scoring (8/10) in (4 out of 5) time word problem activities.
  • By (date), when given (10) word problems involving the addition and subtraction of time intervals in minutes and a physical manipulative clock, (name) will correctly write the new time or the time interval (e.g. "20 minutes passed from start to finish of recess", "8:35pm is when recess ended") scoring (8/10) in (4 out of 5) time word problem activities.
  • By (date), when given (5) word problems involving the addition of time intervals in minutes acted out by the teacher using a physical clock and a printed face of a clock with the problem information already drawn in, (name) will correctly use a physical manipulative clock to match the times shown in the teacher's instruction and draw the time of the answer scoring (4/5) in (4 out of 5) time word problem activities.

UDL Strategies About UDL

  • UDL I 2.5 Illustrate through multiple media
    instead of teachers giving students word problems without visual support, teachers can demonstrate the time intervals given in each word problem by using a physical clock to show students how the hands move showing the minutes lost or gained in each circumstance given in each word problem.
  • UDL II 5.1 Use multiple media for communication
    Instead of students writing their answer on a designated line on an activity page, teachers can give students a printed face of a clock without hands for each problem. Students can use the face of the clock to draw using different colored pencils, the appropriate start time in one color and the addition or subtraction interval in a new color to find each answer.
  • Increase mastery-oriented feedback
    Instead of students completing the word problem activity independently, teachers can have students complete a large group activity where each students is given a small white board and a white board marker. Teachers can project one time interval word problem at a time using a document camera and have students read the problem aloud then hold up their answer to their chin "chin it" when they are finished. When students "chin it" teachers can give immediate corrective feedback or positive reinforcement for the correct strategies being shown.

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Common Core Standards

3.MD.1 Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects
Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram.

Staircase Goals

Ordering Three Objects by Length

When given (10) problems, each consisting of three physical objects, (name) will arrange the objects in order from longest to shortest scoring (8/10) correct arrangements.

Measuring Length: Select and Use the Appropriate Tool

By (date) when given (10) objects to measure, (name) will select the appropriate tool (ruler, yardstick, meter stick, measuring tape) and correctly measure the length of each object scoring (8/10) correct measuring tools selected and object measurements in (4 out of 5) measurement activities.

Adding and Subtracting Time in Word Problems Current Goal

By (date), when given (10) word problems involving the addition and subtraction of time intervals in minutes, (name) will correctly write the new time or the time interval (e.g. "20 minutes passed from start to finish of recess", "8:35pm is when recess ended") scoring (8/10) in (4 out of 5) time word problem activities.

Telling Time to the Nearest Minute

Given (10) digital and (10) analog printed representations of clocks, (name) will verbally tell and write the time to the nearest minute using a.m. and pm. with (16/20) correct responses in (4/5) time activities.

Convert between Units of Measurement to Solve Real-World Problems

By (date), given (5) multi-step real world problems that require converting between measurement units within a standard measurement system (e.g. meters/centimeters, dollars/cents), (name) will find a correct solution by demonstrating each step in writing on (4 out of 5) problems.