B1 ESL Grammar: Present Perfect vs Past Simple | Time Signals & Tense Choice

A complete B1 grammar practice lesson. Clear rule presentation with examples, followed by multiple scaffolded practice exercises that build confidence step by step.

Features:

• Interactive HTML file: opens in any browser, no apps, no logins
• Lesson length: 45 minutes
• Self-checking answers with instant feedback
• Interactive drag-and-drop exercises
• Gap-fill exercises with answer checking
• Dark mode toggle
• Teacher panel (toggle on/off) with answers at a glance and a lesson overview
• Answer export for homework or self-study
• Works offline, no internet required after download

This lesson includes:

1. The Rules
2. Examples
3. Practice A: Complete the Sentences
4. Practice B: Rewrite the Sentences
5. Practice C: Complete the Sentences
6. Quick Reference: Present Perfect vs Past Simple

How to use: Download the HTML file. Double-click to open in your browser. That's it.

I've taught ESL for over a decade and I build all my lessons from my own curriculum and classroom experience. I use AI to assist with the technical production (the HTML, CSS, and JavaScript that make the interactivity work), but the content, question design, scaffolding, and pedagogy are mine. I review everything before it goes out, and if you spot anything that needs fixing, just let me know and I'll sort it.

Licence: for use by one teacher with their own students. Please do not resell, redistribute or share the files. Each teacher needs their own copy.