Mr. Lehmkuhl's GATE Class

Open the piggy bank by counting coins, comparing amounts in cents, using the fewest coins, and cracking a six coin mystery.

Open the vault with place value: order four-digit numbers, name each digit's place, build numbers from blocks, and crack a letter code.

Rescue Bolt the robot with multiplication: read arrays, skip count by 6s, match products that look different, and total up the bolts.

Win the prize booth with rounding and estimating: round to the nearest ten and use clues to find a three-digit number.

Restart the clock tower with elapsed time: read clocks, order times, and work out how long trips take.

Find the Frog King's crown with fractions on a number line: compare to one half, place fractions, and count hops.

Open the butterfly house with symmetry: lines of symmetry, reflections, and finding each shape's missing half.

Open the garden shed with area and perimeter: count squares, measure fences, and see how the two differ.

Open the giant's toolbox by comparing ounces, pounds, cups, inches, feet, and yards, and by reading rulers that do not start at zero.

Open the honey vault with patterns: find the rule in shape, arrow, and number patterns, including ones that grow by doubling.

Open the potion cabinet with fractions in disguise: simplify, find equal amounts, and put fractions in order from emptiest to fullest.

Open the rocket hatch with division: equal sharing, remainders, numbers two crews can both share, and division as backward multiplication.

Open the star chest with coordinate grids: name squares like C4, follow moves across a map, and measure a rectangle.

Open the zookeeper's office with data: tally marks, picture graphs with keys, tables with missing totals, and bar graphs with a scale.

Open the kite chest with angles and shapes: compare angles, find missing angles, and name shapes by their sides and corners.

Open the train depot with factors and multiples: list factors, count by multiples, and find numbers with the most factors.

Open the trophy case with decimals: compare tenths and hundredths, read models, place them on a number line, and make change.

Open the briefcase using the order of operations: parentheses first, then multiplication, then left to right.

Crack the alien fruit stand by treating equal signs like balance scales to find what each fruit is worth.

Open the dragon's hoard with prime and composite numbers: factor pairs, prime factors, and spotting primes.

Open the beanstalk gate with plant science: plant parts and their jobs, what we eat, how seeds travel, and how plants grow.

Open the explorer's backpack with habitats and adaptations: beaks, camouflage, food webs, and animal behaviors that help them survive.

Open the incubator with life cycles: a pumpkin from seed to seed, a ladybug's big changes, where animals lay eggs, and babies that look nothing like their parents.

Open the camera case by sorting animals into groups: mammals, birds, fish, reptiles, amphibians, and insects.

Open the band room locker with sound science: vibrations, high and low pitch, loud and quiet, and how far away a storm is.

Open the crystal cave with rocks and minerals: hardness tests, balancing gems, bouncing light off mirrors, measuring with water, and how rocks form.

Open the derby garage with force and motion: pushes and pulls, balanced forces, speed, and distance.

Open the fossil crate like a paleontologist: rock layers, footprints, trackways, and measuring with a scale bar.

Open the doctor's bag with the human body: what organs do, heart rate, reaction time, how food travels, and the five senses.

Open the ice castle with states of matter: solids, liquids, gases, melting and freezing, and what heat does.

Open the workshop with inventions: match old things to new ones, put the design steps in order, read a timeline, and decode braille.

Open the lab safe with magnets: poles, pushes and pulls, which materials stick, and the patterns magnets make in iron filings.

Open the cloud vault with weather and water: wind direction, a puddle drying and refilling, climates, solids, liquids and gases, and weather tools.

Open the ranger station by reading animal signs and tracks, counting owl pellet skulls, watching a log break down, and following food chains.

Open the stage door with light and shadows: what light passes through, how shadow size changes, mixing colored lights, and a pinhole box.

Open the weather station with storm science: damage clues, counting seconds to thunder, radar maps, hail rings, and staying safe in lightning.

Open the treehouse trapdoor with simple machines: spot levers, wedges, screws and pulleys, place a fulcrum, count ropes, and turn gears.

Relight the lighthouse lamp with light and circuits: bounce beams off mirrors, complete the loop, compare bulb brightness, and test which materials let electricity through.

Open the moon base airlock with Moon science: sun direction from shadows, Moon phases in order, what needs air, and which craters are oldest.

Launch the planet probe with the solar system: planet order, the hottest world, comet tails, moons that move, and the planets with rings.

Open the trophy case with fair tests: change only one thing, read data carefully, and spot results you cannot trust.

Open the toy basket with cause and effect: tell causes from effects, put chains of events in order, and use picture clues to find who made each mess.

Open the cave box with words that have two meanings: use the whole sentence to pick the right one.

Open the cupcake clubhouse with compound words: join two small words, decode picture clues, and find the missing middle word.

Open the knight's chest with homophones: pick the right sound-alike word, like night and knight, and catch spelling mix-ups.

Open the book drop with library skills: put books in ABC order, use dictionary guide words, and find the right shelf or index page.

Open the storybook with sequencing: use words like before and after, follow a backward recipe, read the beach photos, and spot a flashback.

Open the shrinking machine with contractions: build them, take them apart, and pick the pair of words that fits.

Solve the case with context clues: work out what made-up and hard words mean from the sentences around them.

Open the soup pot with word puzzles: climb a word ladder, find words hiding inside words, and unscramble letters into compass directions and animals.

Open the art vault with main idea and details: decide what each picture is mostly about and which details do not belong.

Open the feather box with suffixes: see how endings like ful, less, and ed change a word's meaning.

Open the prize box with fact versus opinion: sort statements and use only facts you can check.

Open the cake box by figuring out what idioms like a piece of cake really mean from the stories around them.

Open the poet's trunk with similes and metaphors: tell them from look-alikes and decode what a poet really means.

Open the parcel with punctuation and capitals: commas, quotation marks, and finding the missing marks.

Open the time machine with prefixes: use un, re, pre, and number prefixes to decode word meanings.

Open the twins' toy chest with synonyms and antonyms: sort word pairs as twins, opposites, or strangers, and rank words by strength.

Open the spellbook with parts of speech: nouns, verbs, adjectives, adverbs, and words that change jobs.

Open the garden gate with root words: base words, prefixes, suffixes, and very old word parts.

Open the toolbox with community helpers: follow the bread from field to store, call the right worker for each problem, and sort goods from services.

Open the little house with homes around the world: how weather and local materials shape the places people live.

Open the picnic basket with communities: tell urban, suburban, and rural places apart, read a map, and ride the subway.

Open the suitcase with world geography: name the oceans and continents, follow a trip on the map, and sort places by hemisphere.

Open the cash box with economics: choices and what you give up, prices, needs and wants, trading, and producers and consumers.

Open the torch room with American symbols and landmarks: the flag, the bald eagle, the Statue of Liberty, and road trips.

Open the mayor's desk with civics: rules and laws, rights and responsibilities, local leaders, and voting.

Open the mountain gate with landforms: peninsulas and straits, canyons and plateaus, height maps, and rivers that run downhill.

Open the museum case with transportation then and now: air, land, and water travel, oldest to newest, and trip times.

Open the camp chest with map skills: planning a trail, map symbols and grids, compass directions, and a map with a compass turned sideways.

Open the dam control room with Las Vegas water: the Colorado River, Hoover Dam, Lake Mead, and ways to save water.

Open the postcard trunk with world landmarks: why each was built, where it is on the map, and which language and flag belong to its country.

Open the strongbox with Nevada: famous towns, neighboring states, where place names come from, and the order of big events.

Open the time capsule like a historian: sort kinds of sources, match old things to today, put photos in order, and decode what 1985 kids packed.

Open the willow basket with the first peoples of Nevada: the Paiute, Shoshone, and Washoe nations, their homelands, and desert resources.

Deliver the mail to state capitals out West: match big cities to their capitals, decode state nicknames, and drive the route with a compass.

Open the car trunk with United States geography: the five regions, where states are, compass directions, and counting states on a map.

Light the Olympic torch with Ancient Greece: democracy, the gods and their symbols, and the first Olympic Games.

Open the pharaoh's tomb with Ancient Egypt: how papyrus is made, the Nile, trading at the market, and reading hieroglyphs.

Open the prize box with race day logic: order the finish line, follow the bridges, trace the slime trail, win at tic tac toe, and solve the clues.

Open the pirate chest with logic: stack cannonballs by a color rule, match keys to locks, sail against the wind, find hidden animals, and count masts.

Win the prize machine with analogies: figure out how two things go together, then find the pair, picture or word that matches.

Open the barn door with farm logic: paint the fields, finish the quilt pattern, push the sheep into the pen, grow number sprouts, and read Grandpa's flip phone text.

Open the candy jar with sweet logic: weigh candies on scales, order the jars, find the path to the lollipop, crack a code, and follow the right licorice rope.

Solve the missing pie case with detective logic: what must be true, what cannot be true, and who is telling the truth.

Open the juggling trunk with big-top logic: tally race wins, stack acrobats, follow the maze, find each performer's trailer, and match riddles to balloons.

Open the grandfather clock with logic: compare gears, order clocks, follow rules, climb a word ladder, and solve a 4 by 4 number grid.

Open the hedge maze gate with garden logic: follow the bee's arrows, find the one path, order the butterflies, fit the stepping stones, and weed out the repeated letters.

Open the temple door with jungle logic: use a grid to match monkeys to fruit, sort carvings into two circles, walk every clearing once, and read the old word stones.

Open the museum case after dark: finish a mirror painting, work out what each camera sees, slide the robot to its charger, and read a mirrored code.

Open the treat cupboard with pet logic: match pets to bowls, walk the dog using its own left and right, follow a hamster tube, and crack the clerk's secret alphabet.

Cross the dragon's bridge with riddles: sort egg nests, stack banners, hop a stone path, find hidden eggs, and crack five classic riddles.

Open the factory door by thinking like a robot: follow exact programs, track a belt shuffle, and crack a letter code.

Open the pantry with kitchen logic: build a domino train, lead the mouse to the cheese, seat the guests, spot the twin cakes, and crack a word search.

Open the cabin door with winter logic: pick snowball teams, unfold paper cutouts, cross the frozen pond, count snow fort blocks, and read the lantern code.

Open the airlock with space logic: line up the planets, connect the stars, fly through rings, find hidden satellites, and spot the missing letters.

Open the workbench drawer with toy-shop logic: finish the spinning top, match stamps to prints, roll the star block, fix the light board, and fill the label boards.

Open the wizard's tower door with logic: match rune twins, flip the lever doors, drop marbles through switches, place the hats, and join picture words.

Open the hatch with deep-sea logic: untangle the pipes, fold flat crates, steer twin subs, count cracked triangles, and read the captain's log.

Open the last vault with the best puzzles of the series: knight jumps, shadows, mirror beams, a number snake, and a card with holes.