314 résultats pour : chalk board

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Caucasian students examining molecular model in science class

TTM22B56_075

Caucasian students examining molecular model in sc...

Students building vehicle in science class

TTM22B56_105

Students building vehicle in science class

Caucasian girl writing on chalkboard in classroom

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Caucasian girl writing on chalkboard in classroom

Teacher explaining arithmetic to student in classroom

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Teacher explaining arithmetic to student in classr...

Woman writing equation on blackboard for son

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Woman writing equation on blackboard for son

Caucasian student examining molecular model in science class

TTM22B56_074

Caucasian student examining molecular model in sci...

Caucasian student building vehicle in science class

TTM22B56_104

Caucasian student building vehicle in science clas...

African American boy sleeping in classroom

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African American boy sleeping in classroom

Hispanic boy holding space helmet in classroom

TTM22B95_051

Hispanic boy holding space helmet in classroom

Blackboard texting on cell phone in hospital bed

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Blackboard texting on cell phone in hospital bed

Caucasian student examining molecular model in science class

TTM22B56_077

Caucasian student examining molecular model in sci...

Hispanic student examining test tube in science class

TTM22B56_088

Hispanic student examining test tube in science cl...

Students building vehicle in science class

TTM22B56_099

Students building vehicle in science class

Caucasian students examining molecular model in science class

TTM22B56_076

Caucasian students examining molecular model in sc...

Hispanic student doing experiment in science class

TTM22B56_089

Hispanic student doing experiment in science class

Students building vehicle in science class

TTM22B56_098

Students building vehicle in science class

Hispanic student building vehicle in science class

TTM22B56_106

Hispanic student building vehicle in science class

Caucasian student examining molecular model in science class

TTM22B56_071

Caucasian student examining molecular model in sci...

Mixed race student building vehicle in science class

TTM22B56_101

Mixed race student building vehicle in science cla...

Mixed race teacher doing math on chalkboard

TTM22B97_288

Mixed race teacher doing math on chalkboard

Mixed race girl drawing

TTM22A55_459

Mixed race girl drawing

Caucasian student with molecular model in science class

TTM22B56_070

Caucasian student with molecular model in science ...

Students building vehicle in science class

TTM22B56_100

Students building vehicle in science class

Hispanic boy reading recycling report in classroom

TTM22B91_291

Hispanic boy reading recycling report in classroom

Mixed race woman under thought bubble on chalkboard

TTM22B97_287

Mixed race woman under thought bubble on chalkboar...

Teacher and student talking by empty speech bubble

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Teacher and student talking by empty speech bubble

Caucasian student examining molecular model in science class

TTM22B56_073

Caucasian student examining molecular model in sci...

Students building vehicle in science class

TTM22B56_103

Students building vehicle in science class

Boys drawing letters w w w on blackboard in classroom

TTM22B91_292

Boys drawing letters w w w on blackboard in classr...

Korean girl holding chalkboard with ABC text

TTM22B95_397

Korean girl holding chalkboard with ABC text

Mixed race girls writing on blackboard

TTM22A55_460

Mixed race girls writing on blackboard

Caucasian student examining molecular model in science class

TTM22B56_072

Caucasian student examining molecular model in sci...

Caucasian students building vehicle in science class

TTM22B56_102

Caucasian students building vehicle in science cla...

Robot women solving equations on blackboard

TTM22A38_354

Robot women solving equations on blackboard

Mixed race student doing experiment in science class

TTM22B56_082

Mixed race student doing experiment in science cla...

Students building vehicle in science class

TTM22B56_093

Students building vehicle in science class

Proud Native American boy standing near equation on blackboard

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Proud Native American boy standing near equation o...

Students doing experiment in science class

TTM22B56_083

Students doing experiment in science class

Students building vehicle in science class

TTM22B56_092

Students building vehicle in science class

Women hiding behind books

TTM22B89_458

Women hiding behind books

Native American boy solving equation on blackboard

TTM22A80_144

Native American boy solving equation on blackboard

Mixed race student using microscope in science class

TTM22B56_080

Mixed race student using microscope in science cla...

Student building vehicle in science class

TTM22B56_091

Student building vehicle in science class

Mixed race student doing experiment in science class

TTM22B56_081

Mixed race student doing experiment in science cla...

Student building vehicle in science class

TTM22B56_090

Student building vehicle in science class

Caucasian student using microscope in science class

TTM22B56_068

Caucasian student using microscope in science clas...

Students doing experiment in science class

TTM22B56_079

Students doing experiment in science class

Students doing experiment in science class

TTM22B56_086

Students doing experiment in science class

Students building vehicle in science class

TTM22B56_097

Students building vehicle in science class

Girls leaning on stacks of books in classroom

TTM22B94_275

Girls leaning on stacks of books in classroom

Caucasian worker nailing boards at construction site

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Caucasian worker nailing boards at construction si...

Caucasian student wearing safety goggles in science class

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Caucasian student wearing safety goggles in scienc...

Caucasian student building molecular model in science class

TTM22B56_078

Caucasian student building molecular model in scie...

Hispanic student examining test tube in science class

TTM22B56_087

Hispanic student examining test tube in science cl...

Student building vehicle in science class

TTM22B56_096

Student building vehicle in science class

Smiling girls standing near blackboard

TTM22B91_067

Smiling girls standing near blackboard

Korean girl writing to do list on blackboard

TTM22B91_169

Korean girl writing to do list on blackboard

Smiling girl looking over her shoulder

TTM22B94_276

Smiling girl looking over her shoulder

Hispanic girl smiling in classroom

TTM22B95_046

Hispanic girl smiling in classroom

Students doing experiment in science class

TTM22B56_084

Students doing experiment in science class

Student building vehicle in science class

TTM22B56_095

Student building vehicle in science class

Women studying together in classroom

TTM22B89_457

Women studying together in classroom

Hispanic girl wearing backpack

TTM22B94_385

Hispanic girl wearing backpack

Student examining plant in science class

TTM22B56_085

Student examining plant in science class

Students building vehicle in science class

TTM22B56_094

Students building vehicle in science class

Hispanic girl standing under 'ABC' on chalkboard

TTM22B94_386

Hispanic girl standing under 'ABC' on chalkboard

Caucasian girl drawing on chalkboard

TTM22C03_433

Caucasian girl drawing on chalkboard

Student shouting at desk in classroom

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Student shouting at desk in classroom

Mixed race boy doing math problems at board in class

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Mixed race boy doing math problems at board in cla...

Mixed race boy doing math problems at board in class

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Mixed race boy doing math problems at board in cla...

Mixed race boy doing math problems at board in class

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Mixed race boy doing math problems at board in cla...

Caucasian girl wearing backpack in classroom

TTM22C03_434

Caucasian girl wearing backpack in classroom

Mixed race sisters drawing on chalkboard

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Mixed race sisters drawing on chalkboard

Frustrated teacher watching student with cell phone and gum

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Frustrated teacher watching student with cell phon...

Caucasian student with light bulb over her head

TTM22B09_201

Caucasian student with light bulb over her head

Boys solving math problems on blackboard

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Boys solving math problems on blackboard

Bored Caucasian teenager studying on classroom

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Bored Caucasian teenager studying on classroom

Hispanic businesswoman smiling by flow chart on blackboard

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Hispanic businesswoman smiling by flow chart on bl...

Caucasian teacher using digital tablet in classroom

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Caucasian teacher using digital tablet in classroo...

Pensive teacher holding chalk near blackboard

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Pensive teacher holding chalk near blackboard

Caucasian teacher underlining fair on blackboard

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Caucasian teacher underlining fair on blackboard

Caucasian teenager standing in classroom

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Caucasian teenager standing in classroom

Portrait of confident Caucasian teacher

TTM22B02_330

Portrait of confident Caucasian teacher

Hispanic businesswoman drawing flow chart on blackboard

TTM22A99_334

Hispanic businesswoman drawing flow chart on black...

Caucasian teenager studying in classroom

TTM22B09_194

Caucasian teenager studying in classroom

Caucasian teenager studying in classroom

TTM22B09_196

Caucasian teenager studying in classroom

Hispanic businesswoman talking in office

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Hispanic businesswoman talking in office

Caucasian teenager daydreaming in classroom

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Caucasian teenager daydreaming in classroom

Caucasian teenager listening to mp3 player in classroom

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Caucasian teenager listening to mp3 player in clas...

Caucasian teenager using laptop in classroom

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Caucasian teenager using laptop in classroom

Caucasian teacher using digital tablet in classroom

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Caucasian teacher using digital tablet in classroo...

Caucasian teenager daydreaming in classroom

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Caucasian teenager daydreaming in classroom

Caucasian student writing on blackboard

TTM22A40_036

Caucasian student writing on blackboard

African girl writing on blackboard

TTM22B86_256

African girl writing on blackboard

Hispanic teacher writing 'ABC' on chalkboard

TTM22B39_173

Hispanic teacher writing 'ABC' on chalkboard

Mixed race girl writing on blackboard

TTM22A55_461

Mixed race girl writing on blackboard

Bored student sitting at desk in classroom

TTM22A94_128

Bored student sitting at desk in classroom

Black boy solving math problems on blackboard

TTM22B88_109

Black boy solving math problems on blackboard

Smiling Hispanic boy wearing backpack

TTM22B89_126

Smiling Hispanic boy wearing backpack

Caucasian student writing on blackboard

TTM22A40_035

Caucasian student writing on blackboard

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