---
title: Before and after: giving to make equal — a lesson of Mova's school · trees and pragmatics
description: «Before and after: giving to make equal», a lesson of the lessons course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: When one child gives things to another, the total stays the same.
---

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# Before and after: giving to make equal

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Lesson 196 of the lessons course of Mova's primary school: 5 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0).

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- [0](https://md.mova.elamur.ai/free/en/corpora/school/lessons/196-before-and-after/0/) — When one child gives things to another, the total stays the same.
- [1](https://md.mova.elamur.ai/free/en/corpora/school/lessons/196-before-and-after/1/) — If they then have the same number, each has half of the total.
- [2](https://md.mova.elamur.ai/free/en/corpora/school/lessons/196-before-and-after/2/) — Before the gift, the giver had the gift more than that half; the other had the gift less.
- [3](https://md.mova.elamur.ai/free/en/corpora/school/lessons/196-before-and-after/3/) — Tom and Ann have 40 marbles.
- [4](https://md.mova.elamur.ai/free/en/corpora/school/lessons/196-before-and-after/4/) — After Tom gives Ann 5, they have the same: 40 ÷ 2 = 20 each, so Tom had 20 + 5 = 25 at first.

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