Grade 4 · lesson 3 of 4

Mark the First Beat in Each Group

Mark the first pulse of each group while keeping all pulses evenly spaced.

About 20 minutes, plus any extended practice

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Supplied materials

  • Paper and a pencil, or typed notes. Draw grouped pulse marks and mark the requested accents.
  • Example: Two groups of 2 equal pulses should accent the first pulse in each group. Which accent map fits? Choices: (A) beats 1 and 3 (B) beats 2 and 4 (C) every pulse except 1 (D) only beat 4.
  • Try this: Two groups of 3 equal pulses should accent the first pulse in each group. Which accent map fits? Choices: (A) beats 1 and 4 (B) beats 3 and 6 (C) every pulse except 1 (D) only beat 6.

Learn the idea

An accent is an emphasis. When the plan asks for an accent on each group’s first pulse, mark those group starts. Keep every pulse and keep the spaces equal.

Look at the example. The first group starts at beat 1. After 2 pulses, the second starts at 3. Accenting those starts marks grouping while all pulses remain equally spaced.

An accented pulse is still part of its group. Keep the other pulses in the plan too.

  1. Read the example with two groups of two pulses. Find the first pulse of each group.
  2. Compare beats 1 and 3 with beats 2 and 4. Explain which pair marks the group starts.
  3. Try the check question and the three practice questions. Then read the feedback.
  4. Draw two groups of three pulses and accent only each group’s first position.
  5. Check your work. All six pulses remain present and positions one and four receive the specified accents.
Worked example

See the method in action

Two groups of 2 equal pulses should accent the first pulse in each group. Which accent map fits? Choices: (A) beats 1 and 3 (B) beats 2 and 4 (C) every pulse except 1 (D) only beat 4. Answer: beats 1 and 3. The first group starts at beat 1. After 2 pulses, the second starts at 3. Accenting those starts marks grouping while all pulses remain equally spaced.

Your turn

Check your reasoning

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Helpful tips
  • An accent is a planned emphasis.
  • The accented positions do not replace the other pulses.
Two groups of 3 equal pulses should accent the first pulse in each group. Which accent map fits?

Feedback appears here after you check. This is practice, not a graded school assessment.

See the answer and explanation

beats 1 and 4

The first group starts at beat 1. After 3 pulses, the second starts at 4. Accenting those starts marks grouping while all pulses remain equally spaced.

Take it further

Try a new example: Two groups of 9 equal pulses should accent the first pulse in each group. Which accent map fits? Choices: (A) beats 1 and 10 (B) beats 9 and 18 (C) every pulse except 1 (D) only beat 18. Answer: beats 1 and 10. The first group starts at beat 1. After 9 pulses, the second starts at 10. Accenting those starts marks grouping while all pulses remain equally spaced. Make your own: Draw two groups of three pulses and accent only each group’s first position. Check your work: All six pulses remain present and positions one and four receive the specified accents.

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More practice: try new cases

Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.

More practice: try new cases
1. Two groups of 4 equal pulses should accent the first pulse in each group. Which accent map fits?
Need a hint?
  • An accent is a planned emphasis.
  • The accented positions do not replace the other pulses.
2. Two groups of 5 equal pulses should accent the first pulse in each group. Which accent map fits?
Need a hint?
  • An accent is a planned emphasis.
  • The accented positions do not replace the other pulses.
3. Two groups of 6 equal pulses should accent the first pulse in each group. Which accent map fits?
Need a hint?
  • An accent is a planned emphasis.
  • The accented positions do not replace the other pulses.

Your choices are temporary. Feedback appears after you check all the answers.

Nothing here is saved to an account or sent to a teacher. Keep your own notes or download them before leaving. The score describes these questions; it does not certify subject mastery.

Check the subject sources

These LifeStarter passages, scenarios and exercises are authored for this Academy with AI assistance and review. External resources keep their publishers’ terms. A grade label suggests a starting level; it does not establish alignment with your school’s complete requirements.