Saying values as hundredths out loud makes the three notations sound like the same number — because they are.
- Say it as hundredths. Ban "point two five" for the lesson: 0.25 must be read as "twenty-five hundredths". Suddenly "25 per cent", "25/100" and "0.25" all sound identical.
- Three-names chorus. Teacher calls a benchmark ("fifty per cent!"), class responds with the other two names ("one half! zero point five — fifty hundredths!"). Speed rounds as a transition activity.
- Convince-me pairs. Partner A claims a conversion ("70% is 7/10"); Partner B must ask "prove it" and A explains verbally via hundredths before writing anything.
- Error interviews. Read aloud: "Jai says five per cent is zero point five." Students explain the mistake in words only — no writing — using the phrase "out of 100".