🔢 Numbers 0–100

Numbers 0–100 is a comprehensive A1 lesson designed for teenage English learners aged 11–16. The lesson begins with a warm-up dialogue showing numbers in natural conversation (age and phone numbers). It then systematically teaches numbers 0–20 with clickable audio cards and highlights key spelling patterns: the -teen suffix for 13–19, the unique words eleven and twelve, and spelling changes in thirteen and fifteen. The tens section (20–100) introduces the formula for building any two-digit number. Four tabbed dialogue sections demonstrate real-world usage: asking about age (How old are you?), phone numbers (saying digits individually with oh for zero), prices (How much is this?), and counting (How many students?). Practice activities progress from guided to free: write-the-number spelling exercises with instant checking, a drag-free matching game pairing digits with words, a listening challenge using browser speech synthesis, an 8-question multiple-choice quiz testing spelling traps (forty vs fourty, fifteen vs fiveteen), and a 60-second speed typing challenge. The HTML is fully responsive, uses the Fleydo green theme, and requires no external dependencies beyond Google Fonts and Material Icons.