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Glimmer Pond cover art, a math game for Preschool to Grade 6 60 free levels

Mathematics · Number Peaks

Glimmer Pond

Cast your line at golden hour and hook the fish that answers the question.

Grades
PS–6
Levels
144 in 6 tracks
Free
60 levels
Session
3–8 minutes

What it is

Glowing fish drift across a quiet pond as the sun sets. Each one carries a letter, a number, a word or a picture. Read or listen to the question, then tap a fish to cast Olly's line and reel it in. Wrong fish simply wriggle free and swim on, and there is never a timer: fish slow down while you aim, and calm mode keeps them still.

What children learn

Big and small letters, counting, addition and subtraction facts, multiplication and division facts, homophones, and Spanish words with pictures, from preschool to grade 6.

What it teaches

  • Count objects to 5
  • Spanish: home and family words
  • Commonly confused words
  • Spanish greetings and introductions
  • Spanish colors
  • Spanish food words
  • Spanish numbers
  • Spanish animal words
  • Big and small letters
  • Multiply and divide within 100
  • Add and subtract within 20
  • Count and place numbers to 10
  • Add and subtract within 10
  • Spanish family words

How to play

Tap or click a fish to cast. Keyboard: arrow keys aim at the next fish, Enter or Space casts, H hears a Spanish word, P pauses. Fish slow down while you aim, and calm mode keeps them still.

Plays with: Touch Mouse Keyboard

Accessibility

  • Read-aloud on request
  • Fully playable with a keyboard
  • Calm mode with reduced motion
  • No timers or time pressure
  • Never relies on color alone
  • Quiet mode turns off sound effects

Level maps

Tracks and levels

Each track is made for a grade range. Start anywhere that fits — you don't have to play the younger tracks first. As a guest, your stars are saved on this device.

Big and Little Letters

Match capital letters, then find each capital's small partner, all the way to tricky look-alikes like b, d, p and q.
PS–K 24 levels · 10 free

Big and Little Letters

Match capital letters, then find each capital's small partner, all the way to tricky look-alikes like b, d, p and q. · PS–K

Levels 1–10 free
  1. 1 Ripple Letters 1 ☆☆☆
  2. 2 Ripple Letters 2 ☆☆☆
  3. 3 Ripple Letters 3 ☆☆☆
  4. 4 Ripple Letters 4 ☆☆☆
  5. 5 Ripple Letters 5 ☆☆☆
  6. 6 Ripple Letters 6 ☆☆☆
  7. 7 Little Letter Lane 1 ☆☆☆
  8. 8 Little Letter Lane 2 ☆☆☆
  9. 9 Little Letter Lane 3 ☆☆☆
  10. 10 Little Letter Lane 4 ☆☆☆
  11. 11 Little Letter Lane 5 Plan level
  12. 12 Little Letter Lane 6 Plan level
  13. 13 Capital Cove 1 Plan level
  14. 14 Capital Cove 2 Plan level
  15. 15 Capital Cove 3 Plan level
  16. 16 Capital Cove 4 Plan level
  17. 17 Capital Cove 5 Plan level
  18. 18 Capital Cove 6 Plan level
  19. 19 Twin Letter Shallows 1 Plan level
  20. 20 Twin Letter Shallows 2 Plan level
  21. 21 Twin Letter Shallows 3 Plan level
  22. 22 Twin Letter Shallows 4 Plan level
  23. 23 Twin Letter Shallows 5 Plan level
  24. 24 Twin Letter Shallows 6 Plan level

Levels after 10 are part of a PlayOwl plan. Free levels, saving and basic reports stay free.

Start Big and Little Letters

Count and Catch

Count apples, shells and stars to 10, match pictures to numbers, and find both ways of showing a number.
PS–K 24 levels · 10 free

Count and Catch

Count apples, shells and stars to 10, match pictures to numbers, and find both ways of showing a number. · PS–K

Levels 1–10 free
  1. 1 Pebble Counting 1 ☆☆☆
  2. 2 Pebble Counting 2 ☆☆☆
  3. 3 Pebble Counting 3 ☆☆☆
  4. 4 Pebble Counting 4 ☆☆☆
  5. 5 Pebble Counting 5 ☆☆☆
  6. 6 Pebble Counting 6 ☆☆☆
  7. 7 Counting Splash 1 ☆☆☆
  8. 8 Counting Splash 2 ☆☆☆
  9. 9 Counting Splash 3 ☆☆☆
  10. 10 Counting Splash 4 ☆☆☆
  11. 11 Counting Splash 5 Plan level
  12. 12 Counting Splash 6 Plan level
  13. 13 How Many? 1 Plan level
  14. 14 How Many? 2 Plan level
  15. 15 How Many? 3 Plan level
  16. 16 How Many? 4 Plan level
  17. 17 How Many? 5 Plan level
  18. 18 How Many? 6 Plan level
  19. 19 Number Match 1 Plan level
  20. 20 Number Match 2 Plan level
  21. 21 Number Match 3 Plan level
  22. 22 Number Match 4 Plan level
  23. 23 Number Match 5 Plan level
  24. 24 Number Match 6 Plan level

Levels after 10 are part of a PlayOwl plan. Free levels, saving and basic reports stay free.

Start Count and Catch

Add and Subtract

Addition and subtraction facts within 10, then within 20 across the ten, missing numbers and fact families.
1–2 24 levels · 10 free

Add and Subtract

Addition and subtraction facts within 10, then within 20 across the ten, missing numbers and fact families. · 1–2

Levels 1–10 free
  1. 1 Adding Ripples 1 ☆☆☆
  2. 2 Adding Ripples 2 ☆☆☆
  3. 3 Adding Ripples 3 ☆☆☆
  4. 4 Adding Ripples 4 ☆☆☆
  5. 5 Adding Ripples 5 ☆☆☆
  6. 6 Adding Ripples 6 ☆☆☆
  7. 7 Taking Away 1 ☆☆☆
  8. 8 Taking Away 2 ☆☆☆
  9. 9 Taking Away 3 ☆☆☆
  10. 10 Taking Away 4 ☆☆☆
  11. 11 Taking Away 5 Plan level
  12. 12 Taking Away 6 Plan level
  13. 13 Over the Ten 1 Plan level
  14. 14 Over the Ten 2 Plan level
  15. 15 Over the Ten 3 Plan level
  16. 16 Over the Ten 4 Plan level
  17. 17 Over the Ten 5 Plan level
  18. 18 Over the Ten 6 Plan level
  19. 19 Fact Detectives 1 Plan level
  20. 20 Fact Detectives 2 Plan level
  21. 21 Fact Detectives 3 Plan level
  22. 22 Fact Detectives 4 Plan level
  23. 23 Fact Detectives 5 Plan level
  24. 24 Fact Detectives 6 Plan level

Levels after 10 are part of a PlayOwl plan. Free levels, saving and basic reports stay free.

Start Add and Subtract

Times and Share

Multiplication and division facts table by table, then missing factors and every fact that makes a number.
3–4 24 levels · 10 free

Times and Share

Multiplication and division facts table by table, then missing factors and every fact that makes a number. · 3–4

Levels 1–10 free
  1. 1 Twos, Fives and Tens 1 ☆☆☆
  2. 2 Twos, Fives and Tens 2 ☆☆☆
  3. 3 Twos, Fives and Tens 3 ☆☆☆
  4. 4 Twos, Fives and Tens 4 ☆☆☆
  5. 5 Twos, Fives and Tens 5 ☆☆☆
  6. 6 Twos, Fives and Tens 6 ☆☆☆
  7. 7 Threes, Fours and Sixes 1 ☆☆☆
  8. 8 Threes, Fours and Sixes 2 ☆☆☆
  9. 9 Threes, Fours and Sixes 3 ☆☆☆
  10. 10 Threes, Fours and Sixes 4 ☆☆☆
  11. 11 Threes, Fours and Sixes 5 Plan level
  12. 12 Threes, Fours and Sixes 6 Plan level
  13. 13 Sevens, Eights and Nines 1 Plan level
  14. 14 Sevens, Eights and Nines 2 Plan level
  15. 15 Sevens, Eights and Nines 3 Plan level
  16. 16 Sevens, Eights and Nines 4 Plan level
  17. 17 Sevens, Eights and Nines 5 Plan level
  18. 18 Sevens, Eights and Nines 6 Plan level
  19. 19 Fact Families 1 Plan level
  20. 20 Fact Families 2 Plan level
  21. 21 Fact Families 3 Plan level
  22. 22 Fact Families 4 Plan level
  23. 23 Fact Families 5 Plan level
  24. 24 Fact Families 6 Plan level

Levels after 10 are part of a PlayOwl plan. Free levels, saving and basic reports stay free.

Start Times and Share

Homophone Hooks

Choose the right word for the sentence: one or won, their or they're, weather or whether.
4–6 24 levels · 10 free

Homophone Hooks

Choose the right word for the sentence: one or won, their or they're, weather or whether. · 4–6

Levels 1–10 free
  1. 1 Sound-Alike Shallows 1 ☆☆☆
  2. 2 Sound-Alike Shallows 2 ☆☆☆
  3. 3 Sound-Alike Shallows 3 ☆☆☆
  4. 4 Sound-Alike Shallows 4 ☆☆☆
  5. 5 Sound-Alike Shallows 5 ☆☆☆
  6. 6 Sound-Alike Shallows 6 ☆☆☆
  7. 7 Tricky Little Words 1 ☆☆☆
  8. 8 Tricky Little Words 2 ☆☆☆
  9. 9 Tricky Little Words 3 ☆☆☆
  10. 10 Tricky Little Words 4 ☆☆☆
  11. 11 Tricky Little Words 5 Plan level
  12. 12 Tricky Little Words 6 Plan level
  13. 13 Deep-Water Homophones 1 Plan level
  14. 14 Deep-Water Homophones 2 Plan level
  15. 15 Deep-Water Homophones 3 Plan level
  16. 16 Deep-Water Homophones 4 Plan level
  17. 17 Deep-Water Homophones 5 Plan level
  18. 18 Deep-Water Homophones 6 Plan level
  19. 19 Echo Cove 1 Plan level
  20. 20 Echo Cove 2 Plan level
  21. 21 Echo Cove 3 Plan level
  22. 22 Echo Cove 4 Plan level
  23. 23 Echo Cove 5 Plan level
  24. 24 Echo Cove 6 Plan level

Levels after 10 are part of a PlayOwl plan. Free levels, saving and basic reports stay free.

Start Homophone Hooks

Spanish Words

Everyday Spanish words with pictures: food, animals, family, home, colors, numbers and greetings.
K–5 24 levels · 10 free

Spanish Words

Everyday Spanish words with pictures: food, animals, family, home, colors, numbers and greetings. · K–5

Levels 1–10 free
  1. 1 Picture Words 1 ☆☆☆
  2. 2 Picture Words 2 ☆☆☆
  3. 3 Picture Words 3 ☆☆☆
  4. 4 Picture Words 4 ☆☆☆
  5. 5 Picture Words 5 ☆☆☆
  6. 6 Picture Words 6 ☆☆☆
  7. 7 Word Pictures 1 ☆☆☆
  8. 8 Word Pictures 2 ☆☆☆
  9. 9 Word Pictures 3 ☆☆☆
  10. 10 Word Pictures 4 ☆☆☆
  11. 11 Word Pictures 5 Plan level
  12. 12 Word Pictures 6 Plan level
  13. 13 Numbers and Greetings 1 Plan level
  14. 14 Numbers and Greetings 2 Plan level
  15. 15 Numbers and Greetings 3 Plan level
  16. 16 Numbers and Greetings 4 Plan level
  17. 17 Numbers and Greetings 5 Plan level
  18. 18 Numbers and Greetings 6 Plan level
  19. 19 Word Families 1 Plan level
  20. 20 Word Families 2 Plan level
  21. 21 Word Families 3 Plan level
  22. 22 Word Families 4 Plan level
  23. 23 Word Families 5 Plan level
  24. 24 Word Families 6 Plan level

Levels after 10 are part of a PlayOwl plan. Free levels, saving and basic reports stay free.

Start Spanish Words

More from Number Peaks

Other mathematics games, each with its own free levels.