Category: Mathematics
Showing 1–16 of 172 results
10 inch Wood Tambourine Percussion Jingles Bell Musical instrument Kids Educational Toys
$23.88MathematicsAdd to cartFeaturesSo easy to hold, just shake along with your favorite tunes or make up your own rhythms to play.It will give little ones hours of fun and will encourage toddlers’ musical activities.Great for percussion sounds.Also great for kindergarten teaching.SpecificationsMaterial:WoodDiameter:Approx. 255mm/10inchHandle Color:WoodBells Quantity:8pcsSuits for:3 to 14 years old kidsPackage Includes1x Tambourine
116ML Hot Air Stirling Engine Model Generator Motor Educational Steam Power Toy
$258.63MathematicsAdd to cartSpecificationsBoiler capacity:a maximum of 116ML with a single water additionMaterial:Bottom plate made of Bakelite, painted on the surface, brass, aluminum alloyColor:Silver+blackSize:195mm*100mm*110mmFeature-Aerodynamics are rich in knowledge of physics, single cylinder combustion engine. Engine principle is intuitive, educational toys,teaching experimental equipment can effectively cultivate children’s interest in learning can also be used for classroom teaching, more intuitive …
116ML Hot Air Stirling Engine Model Generator Motor Educational Steam Power ToyRead More
11Pcs Educational Wooden Rainbow Puzzle Game Blocks Brick Toys for Baby Toddler
$93.14MathematicsAdd to cartSpecificationsMaterial:WoodColor:MulticolorsThe Biggest Size:(L)X(W) 36.5×18.5cm /14.37inchx7.28inch(appr.)The Smallest Size:(L)X(W) 9.3×4.6cm /3.66inchx1.81inch(appr.)Features Baby toddler toys – Wooden 11 colors rainbow puzzle Made of wood material, environmentally friendly water-based paint, thin lacquer wood grain is clearly visible Good for improving kid’s eye-hand coordination, developing brain power, expanding the sensitivity to colors and shapesPackage Included1 x Semicircle Wooden Toy (11pcs/set, …
11Pcs Educational Wooden Rainbow Puzzle Game Blocks Brick Toys for Baby ToddlerRead More
12Pcs Professional National Flag Tail Darts 4 Kinds with 100 Extra Soft Tips
$32.39MathematicsAdd to cartSpecificationColor:Black+GoldTotal Lenght:150 mmFlag Tail:UK/USA/France/Germany National FlagMaterial:Plastic+Iron+PETSurface Plating:Iron Copper PlatingFeatures1. The darts can be apart,contains functional plastic soft point,brass barrel for better grip.4. Being tested for so many times, the width of the stripe maintain the best hand feeling with its moderate thickness.5. Darts can adjust the balance of the left and right brain, that is, …
12Pcs Professional National Flag Tail Darts 4 Kinds with 100 Extra Soft TipsRead More
144pcs Kid’s Electric Drill Power Tool Screw Driver Drill Toys Construction Drill Toys DIY Education Gifts
$68.84MathematicsAdd to cart144pcs Kids Electric Drill Power Tool Screw Driver Drill Toy Construction Drill Toys DIY Education GiftsDescriptionType:Kids Education ToysColor:Multi-colorMaterial:PlasticDrill Powered:2x AA Batteries(Not included)Pacakge Size:approx.31×24.5×6.5cmPackage included1XPower Drill1XScrewdriver1XHandle1XStorage Box64XColor Graphics (4 ColorsX16)80XScrew Bits(5 ColorsX16)Feature–High Quality Material & Safty:The tool electric drill is made of BPA-FREE, non-toxic, and high quality ABS plistic materials which have no harm to your …
154Pcs Wooden Jigsaw Puzzle Building Blocks Children DIY Early Education Learning Toy
$31.29MathematicsAdd to cartSpecificationName:Puzzle BlockMaterial:WoodenSuitable Age:Over 3 years oldPackage Size:25.3×21.5×4.5 cmFeatures-Fun puzzle, cards can be used on both sides.-Through different combinations of blocks, spell out different patterns, active children’s thinking to expand imagination and creativity.-Imi-tate the pattern for simple construction, fully mobilize the child’s imagination.-Rich colors and shapes, deepen children’s memory of knowledge points, happy games, easy early …
154Pcs Wooden Jigsaw Puzzle Building Blocks Children DIY Early Education Learning ToyRead More
15cm Optical Glass Crystal Triple Triangular Prism Photography Physics Teaching Light Spectrum
$36.44MathematicsAdd to cartDescriptionTriangular prism can be used to disperse light, that is to break light up into its spectral components (the colors of the rainbow). Bring it home as a specilly meaningful present. Raise the interest to scientific exploration, show your kids a rainbow and lead them to an interesting optical physics experiment.SpecificationMaterial:Optical GlassColor:TransparentSize Length:(approx.) 3cmPrism Length:(approx.) …
165PCS Building Blocks Set DIY Crazy Marble Race Run Maze Track Construction Toys
$34.41MathematicsAdd to cartSpecificationsName:DIY Sliding BlocksMaterial:ABS(Acrylonitrile Butadiene Styrene)Color:Various colorsPieces:165 PCSAge:Children ages 3 years old and upCompatibility:Can be used with Duplo building blocksPackaged included165 PCS Building Blocks
170PCS Wooden IQ Game Jigsaw Early Learning Educational Tangram Puzzle Kid Toy
$46.56MathematicsAdd to cartSpecifications170pcs blocks jigsaw puzzleColor:Multi-colorMaterial:WoodStorage box size:20x30x6cm/7.87inchx11.81inchx2.36inch[Conversion:1cm=0.3937 inch, 1inch=2.54 cm]FeaturesUseful For Many Concepts:170pcs blocks set there are plenty for making many different patterns. These blocks work on those cards perfectly and cards have simpler & nicer designs (i.e., rocket, car, owl, geometric pattern, etc.) for kids.Fun Educational Toy:wooden shapes feel soft and smooth in hands, thick …
170PCS Wooden IQ Game Jigsaw Early Learning Educational Tangram Puzzle Kid ToyRead More
18W 1PCS Aquarium Filter Aquarium internal Filter Oxygen Submersible Water Pumps for Fish Tank Pond Aquarium Filters
$48.59MathematicsAdd to cartSpecificationsModel:1280FMaterial:ABSFlow 1300 L/H ,Cable length:1.1MMaximum lift:1.2mOxygen tube length:0.34MFit For fish tank:≤80cmColor:As Picture ShowPower Consumption:18WWeight:639gFeatures-Removable filter box, easy to replace the filter material.-Adopt high quality and firm ABS shell, durable, freshwater and sea water are suitable.-Small size, easy to hide, at the same time filtering, oxygen, pumping and other functions.-With biological filtration cotton in the filter …
198PCS DIY Drilling Screw 3D Cartoon Animals Electric Drill Assemble Creative Puzzle Toys Set
$58.71MathematicsAdd to cart198PCS DIY Drilling Screw 3D Cartoon Animals Electric Drill Assemble Creative Puzzle Toys SetSpecificationsItem Name:DIY Screw PuzzleColor:Multi-colorMaterial:ABSQuntity:198PCSBox size:31×8.6x25cm/12.09×3.36×9.75inchCarton size:77.5x34x75cm/30.93×13.26×29.25inch(1cm=10mm=0.39inch)Measurement Details in the attached picture.Package included1xDIY Screw Puzzle1xEnglish manualFeaturesThis great value pack comes with enough pieces and in enough colors so your child will be entertained for a long time. They will love playing with the …
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WEAH-307 3 Way Audio Speaker Crossover 100W Filter Treble Mediant Bass Frequency Divider Module
$15.30Amplifier BoardAdd to cartFeatureMode:WEAH-307Power:100WImpedance:4-8ohmCompatible for:Under 6inches HornTreble Standard:12db/octBass Standard:12db/octSize:8.5×6.2×2.6cmFrequency response:low 45Hz, high 20KHzPackage includes1 x 100W Filter Treble Mediant Bass Frequency Divider
3pcs WXD3-13-2W Precision Potentiometer 22K 22K Ohm Wirewound Multi-Turn Potentiometer
$10.49Module ComponentsAdd to cartSpecificationsResistance range:22K┯Resistance tolerance:÷ 5%Rotation angle:3600 ÷ 20 Number of laps:10 lapsRated voltage:160VStarting torque:3.5 ~ 100mN.mRated power:2W (85 →) 0W (125 →)Linearity accuracy:÷ 0.3%Mechanical durability:10,000 weeksPackage included3 x Potentiometer
20Pcs Serial Port WIFI ESP8266 Module Adapter Plate with IO Lead Out for ESP-07 ESP-08 ESP-12
$12.02Smart ModuleAdd to cart20Pcs Serial Port WIFI ESP8266 Module Adapter Plate With IO Lead Out For ESP-07 ESP-08 ESP-12This Adapter Plate is for ESP-07 ESP-08 ESP-12, a test board with IO lead out.NoteNeed to solder 3V regulator by youself.ESP-07, ESP-08, ESP-12 module board are not included!!!Package included20 x Serial Port WIFI ESP8266 Module Adapter Plate40 x Pins
10pcs 2S 5A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board BMS for Li-ion Lipo Battery
$16.88Battery Protection ModuleAdd to cartSpecificationsModel:HX-2S-A2 Overcharge voltage range:4.25-4.35v ± 0.05vSize:17.5 * 17.5 * 3.2mm over discharge voltage range:2.5-3.0v ± 0.05vUpper limit operating current:5A Operating temperature:-40 — +50 °Upper limit instantaneous current:7A Storage conditions:-40– +80 °Quiescent current:less than 10uA Effective life:more than 50,000 hoursInternal resistance:less than 300mΩ Short circuit protection:can be protected, need to charge recoveryCharging voltage:8.4V-9VWelding point DescriptionB + …
DC 24V 600L/H Submersible Pump Immersible Pump Under Water Pump Bath Pump
$42.51Electrical Pump & ValveAdd to cartSubmersible Pump Immersible Pump Under Water Aquarium Bath Pump DC 24V 600L/HSpecificationColor:GreyUse:SubmersibleMaterial:Engineering ABSRated Voltage:DC 24VStarting Voltage:6VCurrent:0.75AFlow:600L/HNoise:50dB MAXMax. Head:500cmPower:18wWaterproof grade:IP68Motor:brush motorWater temperature:-20 ° C ~ 60 ° ° CAmbient humidity:45%~90%No load current:less than 0.2ACurrent at load:1.2ACable:1.5m /59.06inch(appr.)Total Length:105.9mm /4.31inch(appr.)FeaturesBrand New and high quality.Suitable for tap water, sea water, ground waterCannot be used directly with 220V AC …
DC 24V 600L/H Submersible Pump Immersible Pump Under Water Pump Bath PumpRead More
TDA7498 2.1 Digital Power Amplifier Board 200W+100W+100W Supasses TPA3116 Class D DC24V
$70.06Amplifier BoardAdd to cartFeatures-Using original TDA7498 TL072-The front input capacitor and the inter-stage coupling capacitor use Siemens’ top-level capacitors 1UF, the electrolytic capacitor signal main circuit uses Taiwanese famous brands, and the main filter capacitor uses special electrolytic capacitors 2≠2200UF to ensure strong continuous power support.-The resistors are high-precision chip resistors, and the main circuit uses five-ring metal …
TDA7498 2.1 Digital Power Amplifier Board 200W+100W+100W Supasses TPA3116 Class D DC24VRead More
3Pcs RobotDyn RTC DS1307 Real Time Clock Battery Shield with Pin Headers Set
$18.67Expansion Board & ShieldAdd to cartPINOUT:http://img.staticbg.com/file/products/20171226001032PINOUT-RTCDS1307.pdfSchematic:http://img.staticbg.com/file/products/20171226001140Schematic-RTCDS1307.pdfFeatureType:Logic ICsPackage includes3 x RTC DS1307 (real time clock) + battery3 x Wemos D1 mini shield6 x Male Pin Header 8pins6 x Female Pin Header -BLACK 8pins6 x Stackable Header – BLACK 8pins