Επικεντρώνομαι στη δουλειά. εκπαίδευση. δάσκαλος χρησιμοποιούν τρίγωνο. Μαθηματικά και γεωμετρία θέμα. Πίσω στο σχολείο. Έτοιμος για μηχανική. εργαλείο για γραφικά. ώριμος γενειοφόρος άνδρας κρατά τριγωνικό χάρακα. σπουδές στο σπίτι. - Φωτογραφίες & Εικόνες Αρχείου

Study algebra at university. back to school. teacher of arithmetic. calculation and search of various data. precision measurement tool. man use triangle. math or mathematics. Stem education concept.

Focusing on work. education. school teacher use triangle. math and geometry subject. back to school. ready for engineering. tool for graphics. mature bearded man hold triangle ruler. study at home.

Drawing lesson. School education. Teaching geometry. Auxiliary equipment. Architect education. Bearded man teacher use ruler. Innovative approach. Measurement tool. Studying math. Education concept.

Professional choice. bearded tutor man with ruler. draw and measure. back to school. favorite subject and disciplines. Education at school. home learning concept. man teacher use triangle tool.

Calculation and search of various data. precision measurement tool. man use triangle. math or mathematics. Stem education concept. study algebra at university. back to school. teacher of arithmetic.

Education concept. School education. Teaching geometry. Auxiliary equipment. Architect education. Bearded man teacher use ruler. Innovative approach. Drawing lesson. Measurement tool. Studying math.

Study at home. education. school teacher use triangle. math and geometry subject. back to school. ready for engineering. tool for graphics. mature bearded man hold triangle ruler.

School classes. Studying with fun. Measurement tool. Teacher stem. School education. Interesting riddle. Find solution. Free education. Teaching geometry. Bearded man use ruler. Education concept.

Learning metric system. School teacher. Size really matters. Man bearded hipster holding ruler. Measure length. Measure and control. Geometry theorem. Measure with centimeters. Size table concept.

Triangles only have three sides. School teacher or university student smiling with geometric triangles for geometry lesson. Happy hipster holding triangles on yellow background. Lesson in triangles.

There is no substitute for a great teacher. Happy teacher holding ruler on yellow background. Maths teacher smiling with mathematical instrument ready for lesson. School teacher welcoming students.

There is no substitute for a great teacher. Happy teacher holding ruler on yellow background. Maths teacher smiling with mathematical instrument ready for lesson. School teacher welcoming students.

Size tall and length. Big size. Measure and control. Geometry theorem. Actual size. School teacher. Small little big large. Does size really matter. Man bearded hipster holding ruler. Measure length.

Actual size. School teacher. Small little big large. Does size really matter. Man bearded hipster holding ruler. Measure length. Size tall and length. Big size. Measure and control. Geometry theorem.

Triangles only have three sides. School teacher or university student smiling with geometric triangles for geometry lesson. Happy hipster holding triangles on yellow background. Lesson in triangles.

Learning metric system. School teacher. Size really matters. Man bearded hipster holding ruler. Measure length. Measure and control. Geometry theorem. Measure with centimeters. Size table concept.