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MATATAG Key Stage 1 Term 1 · Week 9 · Number and Algebra

Mathematics 1

Composing and decomposing numbers up to 10 — competency 10 of the guide. The full classroom set, checked against the official curriculum guide. Everything works without an internet connection.

This is the reading copy. The class is taught in Filipino. Grade 1 is taught in the mother tongue under MTB-MLE, so this English set exists to be reviewed, not delivered. Three teacher documents have an English version; the three artifacts shown to the children do not, deliberately — see the note at the foot of this page.
Language of instruction
Filipino
Calendar
Three terms · 33 weeks
Lesson length
45 minutes
Electricity needed
None

Split it, and the whole is still the same.

That is the entire lesson. The bars below never change length — only the split moves.

4 1
3 2
1 4

For the teacher — five documents

All five have an English version. It exists for review — by a school head, a district supervisor, or a teacher in a non-Tagalog region.

For the class — four artifacts

Shown directly to the children. Filipino only — there is no English version, and that is deliberate.

Why those three have no English version Under MTB-MLE the mother tongue is the medium of instruction in Grades 1 to 3 for every learning area except Filipino and English as subjects. The slides, the game and the wall chart face the child directly. An English version of them would create a route to projecting English at a Grade 1 class, which the curriculum forbids. Teacher documents are a different matter: adults read those, and no child is shown them.

Why it is designed this way

Six and seven year olds, forty-five children, one screen.

  • The class cannot read yet. The guide says so itself — problems are “given orally or in pictures.” No instruction here depends on a written word.
  • The whole never changes length. If it shifted even slightly to suit the layout, the entire argument collapses — the child's eye is the proof.
  • Five is literally half of ten on the wall chart, because that is true. Lengths are not equalised to look tidy.
  • Three colours only — whole, first part, second part. The first part is always on the left, so it still reads in black and white.
  • No losing, no timer, no ranking. A child who has felt they lost at mathematics has learned something, and it is not mathematics.
  • 88 px is the smallest tap target, not 44 — hand control is not there yet at this age.

The full design system →

Verification

The grade level standard, the domains, and all four quarters come from the official curriculum guide committed to this repository (DepEd, August 2023, pp. 25–28).

✅ The guide is written in English, and so is this copy. That means §2 and §4 of this syllabus are quotations, not translations — which is the reason to review the course here rather than in the Filipino copy. The Filipino set remains the one that gets taught, and its translations have still not been checked by a Filipino-speaking teacher.

The full verification table →